audit: type=1400 audit(1663160779.250:8): avc: denied { kernel } for pid=3765 comm="syz-executor.3" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 ------------[ cut here ]------------ ====================================================== WARNING: possible circular locking dependency detected 6.0.0-rc5-next-20220914 #1 Not tainted ------------------------------------------------------ syz-executor.3/3766 is trying to acquire lock: ffffffff853fa878 ((console_sem).lock){....}-{2:2}, at: down_trylock+0xe/0x70 but task is already holding lock: ffff88800f326020 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ctx->lock){....}-{2:2}: _raw_spin_lock+0x2a/0x40 __perf_event_task_sched_out+0x53b/0x18d0 __schedule+0xedd/0x2470 schedule+0xda/0x1b0 exit_to_user_mode_prepare+0x114/0x1a0 syscall_exit_to_user_mode+0x19/0x40 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #2 (&rq->__lock){-.-.}-{2:2}: _raw_spin_lock_nested+0x30/0x40 raw_spin_rq_lock_nested+0x1e/0x30 task_fork_fair+0x63/0x4d0 sched_cgroup_fork+0x3d0/0x540 copy_process+0x4183/0x6e20 kernel_clone+0xe7/0x890 user_mode_thread+0xad/0xf0 rest_init+0x24/0x250 arch_call_rest_init+0xf/0x14 start_kernel+0x4c1/0x4e6 secondary_startup_64_no_verify+0xe0/0xeb -> #1 (&p->pi_lock){-.-.}-{2:2}: _raw_spin_lock_irqsave+0x39/0x60 try_to_wake_up+0xab/0x1920 up+0x75/0xb0 __up_console_sem+0x6e/0x80 console_unlock+0x46a/0x590 vt_ioctl+0x2822/0x2ca0 tty_ioctl+0x7c4/0x1700 __x64_sys_ioctl+0x19a/0x210 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #0 ((console_sem).lock){....}-{2:2}: __lock_acquire+0x2a02/0x5e70 lock_acquire+0x1a2/0x530 _raw_spin_lock_irqsave+0x39/0x60 down_trylock+0xe/0x70 __down_trylock_console_sem+0x3b/0xd0 vprintk_emit+0x16b/0x560 vprintk+0x84/0xa0 _printk+0xba/0xf1 report_bug.cold+0x72/0xab handle_bug+0x3c/0x70 exc_invalid_op+0x14/0x50 asm_exc_invalid_op+0x16/0x20 group_sched_out.part.0+0x2c7/0x460 ctx_sched_out+0x8f1/0xc10 __perf_event_task_sched_out+0x6d0/0x18d0 __schedule+0xedd/0x2470 schedule+0xda/0x1b0 exit_to_user_mode_prepare+0x114/0x1a0 syscall_exit_to_user_mode+0x19/0x40 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd other info that might help us debug this: Chain exists of: (console_sem).lock --> &rq->__lock --> &ctx->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ctx->lock); lock(&rq->__lock); lock(&ctx->lock); lock((console_sem).lock); *** DEADLOCK *** 2 locks held by syz-executor.3/3766: #0: ffff88806ce37cd8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1cf/0x2470 #1: ffff88800f326020 (&ctx->lock){....}-{2:2}, at: __perf_event_task_sched_out+0x53b/0x18d0 stack backtrace: CPU: 0 PID: 3766 Comm: syz-executor.3 Not tainted 6.0.0-rc5-next-20220914 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 check_noncircular+0x263/0x2e0 __lock_acquire+0x2a02/0x5e70 lock_acquire+0x1a2/0x530 _raw_spin_lock_irqsave+0x39/0x60 down_trylock+0xe/0x70 __down_trylock_console_sem+0x3b/0xd0 vprintk_emit+0x16b/0x560 vprintk+0x84/0xa0 _printk+0xba/0xf1 report_bug.cold+0x72/0xab handle_bug+0x3c/0x70 exc_invalid_op+0x14/0x50 asm_exc_invalid_op+0x16/0x20 RIP: 0010:group_sched_out.part.0+0x2c7/0x460 Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d ab 15 ac 7e 31 ff 89 de e8 d6 b3 ef ff 85 db 0f 84 8a 00 00 00 e8 19 b7 ef ff <0f> 0b e9 a5 fe ff ff e8 0d b7 ef ff 48 8d 7d 10 48 b8 00 00 00 00 RSP: 0018:ffff88801f2afc48 EFLAGS: 00010006 RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8880408f5040 RSI: ffffffff81566027 RDI: 0000000000000005 RBP: ffff888008660000 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff865ac01b R12: ffff88800f326000 R13: ffff88806ce3d100 R14: ffffffff8547c660 R15: 0000000000000002 ctx_sched_out+0x8f1/0xc10 __perf_event_task_sched_out+0x6d0/0x18d0 __schedule+0xedd/0x2470 schedule+0xda/0x1b0 exit_to_user_mode_prepare+0x114/0x1a0 syscall_exit_to_user_mode+0x19/0x40 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb3b7002b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb3b4578218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007fb3b7115f68 RCX: 00007fb3b7002b19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb3b7115f6c RBP: 00007fb3b7115f60 R08: 000000000000000e R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 00007fb3b7115f6c R13: 00007ffdfc7166bf R14: 00007fb3b4578300 R15: 0000000000022000 WARNING: CPU: 0 PID: 3766 at kernel/events/core.c:2309 group_sched_out.part.0+0x2c7/0x460 Modules linked in: CPU: 0 PID: 3766 Comm: syz-executor.3 Not tainted 6.0.0-rc5-next-20220914 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:group_sched_out.part.0+0x2c7/0x460 Code: 5e 41 5f e9 3b b7 ef ff e8 36 b7 ef ff 65 8b 1d ab 15 ac 7e 31 ff 89 de e8 d6 b3 ef ff 85 db 0f 84 8a 00 00 00 e8 19 b7 ef ff <0f> 0b e9 a5 fe ff ff e8 0d b7 ef ff 48 8d 7d 10 48 b8 00 00 00 00 RSP: 0018:ffff88801f2afc48 EFLAGS: 00010006 RAX: 0000000040000002 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8880408f5040 RSI: ffffffff81566027 RDI: 0000000000000005 RBP: ffff888008660000 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff865ac01b R12: ffff88800f326000 R13: ffff88806ce3d100 R14: ffffffff8547c660 R15: 0000000000000002 FS: 00007fb3b4578700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562430948ad8 CR3: 000000001f050000 CR4: 0000000000350ef0 Call Trace: ctx_sched_out+0x8f1/0xc10 __perf_event_task_sched_out+0x6d0/0x18d0 __schedule+0xedd/0x2470 schedule+0xda/0x1b0 exit_to_user_mode_prepare+0x114/0x1a0 syscall_exit_to_user_mode+0x19/0x40 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb3b7002b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb3b4578218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007fb3b7115f68 RCX: 00007fb3b7002b19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb3b7115f6c RBP: 00007fb3b7115f60 R08: 000000000000000e R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 00007fb3b7115f6c R13: 00007ffdfc7166bf R14: 00007fb3b4578300 R15: 0000000000022000 irq event stamp: 740 hardirqs last enabled at (739): [] exit_to_user_mode_prepare+0x109/0x1a0 hardirqs last disabled at (740): [] __schedule+0x1225/0x2470 softirqs last enabled at (508): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (375): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- loop7: detected capacity change from 0 to 264192 loop7: detected capacity change from 0 to 264192 tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' tmpfs: Bad value for 'mpol' device lo entered promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device lo left promiscuous mode tmpfs: Bad value for 'mpol' hrtimer: interrupt took 19476 ns device lo entered promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device lo left promiscuous mode tmpfs: Bad value for 'mpol' UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy device lo entered promiscuous mode misc raw-gadget: fail, usb_gadget_register_driver returned -16 misc raw-gadget: fail, usb_gadget_register_driver returned -16 device lo entered promiscuous mode device syz_tun entered promiscuous mode UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device lo left promiscuous mode device syz_tun left promiscuous mode device lo left promiscuous mode UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 device lo entered promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device lo left promiscuous mode device lo entered promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device lo left promiscuous mode UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy device lo entered promiscuous mode UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy loop0: detected capacity change from 0 to 132 misc raw-gadget: fail, usb_gadget_register_driver returned -16 loop6: detected capacity change from 0 to 352 device syz_tun entered promiscuous mode misc raw-gadget: fail, usb_gadget_register_driver returned -16 device syz_tun left promiscuous mode device lo left promiscuous mode loop5: detected capacity change from 0 to 592 loop7: detected capacity change from 0 to 180 loop7: detected capacity change from 0 to 180 loop3: detected capacity change from 0 to 136 loop5: detected capacity change from 0 to 184 loop0: detected capacity change from 0 to 608 loop6: detected capacity change from 0 to 1298 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 loop5: detected capacity change from 0 to 264192 loop6: detected capacity change from 0 to 1298 loop0: detected capacity change from 0 to 1304 loop3: detected capacity change from 0 to 5168 loop7: detected capacity change from 0 to 180 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 loop2: detected capacity change from 0 to 1352 loop4: detected capacity change from 0 to 5408 loop7: detected capacity change from 0 to 180 loop0: detected capacity change from 0 to 128 loop6: detected capacity change from 0 to 1298 loop3: detected capacity change from 0 to 128 loop5: detected capacity change from 0 to 264192 loop6: detected capacity change from 0 to 1298 loop3: detected capacity change from 0 to 264192 loop0: detected capacity change from 0 to 128 loop4: detected capacity change from 0 to 5408 loop2: detected capacity change from 0 to 1352 loop5: detected capacity change from 0 to 264192 loop3: detected capacity change from 0 to 264192 loop5: detected capacity change from 0 to 264192 loop4: detected capacity change from 0 to 5408 loop0: detected capacity change from 0 to 128 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy loop2: detected capacity change from 0 to 1352 misc raw-gadget: fail, usb_gadget_register_driver returned -16 loop7: detected capacity change from 0 to 360 loop3: detected capacity change from 0 to 264192 loop0: detected capacity change from 0 to 128 loop6: detected capacity change from 0 to 368 loop7: detected capacity change from 0 to 130 loop0: detected capacity change from 0 to 128 loop6: detected capacity change from 0 to 180 loop3: detected capacity change from 0 to 2048 loop4: detected capacity change from 0 to 5408 loop1: detected capacity change from 0 to 592 EXT4-fs (loop3): inodes count not valid: 196640 vs 32 loop2: detected capacity change from 0 to 1352 loop0: detected capacity change from 0 to 128 loop7: detected capacity change from 0 to 40 loop3: detected capacity change from 0 to 2048 EXT4-fs (loop3): inodes count not valid: 196640 vs 32 loop6: detected capacity change from 0 to 344 loop3: detected capacity change from 0 to 2048 loop1: detected capacity change from 0 to 592 EXT4-fs (loop3): inodes count not valid: 196640 vs 32 loop0: detected capacity change from 0 to 128 loop6: detected capacity change from 0 to 1294 loop3: detected capacity change from 0 to 2048 EXT4-fs (loop3): inodes count not valid: 196640 vs 32 loop6: detected capacity change from 0 to 5152 loop1: detected capacity change from 0 to 592 loop6: detected capacity change from 0 to 1300 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop7, logical block 10, lost async page write syz-executor.7 (4228) used greatest stack depth: 24472 bytes left loop1: detected capacity change from 0 to 592 loop3: detected capacity change from 0 to 2048 loop6: detected capacity change from 0 to 1348 EXT4-fs (loop3): inodes count not valid: 196640 vs 32 loop2: detected capacity change from 0 to 5392 loop4: detected capacity change from 0 to 128 loop7: detected capacity change from 0 to 40 loop6: detected capacity change from 0 to 40 loop4: detected capacity change from 0 to 40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop7, logical block 10, lost async page write loop0: detected capacity change from 0 to 128 loop2: detected capacity change from 0 to 5392 syz-executor.4: attempt to access beyond end of device loop4: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop4, logical block 10, lost async page write loop0: detected capacity change from 0 to 128 syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write loop4: detected capacity change from 0 to 40 loop7: detected capacity change from 0 to 40 loop2: detected capacity change from 0 to 5392 syz-executor.4: attempt to access beyond end of device loop4: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop4, logical block 10, lost async page write loop6: detected capacity change from 0 to 40 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop7, logical block 10, lost async page write loop1: detected capacity change from 0 to 344 loop0: detected capacity change from 0 to 128 syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write loop4: detected capacity change from 0 to 40 syz-executor.4: attempt to access beyond end of device loop4: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop4, logical block 10, lost async page write loop2: detected capacity change from 0 to 5392 loop0: detected capacity change from 0 to 352 loop7: detected capacity change from 0 to 40 loop6: detected capacity change from 0 to 40 loop3: detected capacity change from 0 to 132 loop1: detected capacity change from 0 to 128 loop4: detected capacity change from 0 to 184 syz-executor.6: attempt to access beyond end of device loop6: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop6, logical block 10, lost async page write loop3: detected capacity change from 0 to 608 loop0: detected capacity change from 0 to 1298 loop1: detected capacity change from 0 to 128 syz-executor.7: attempt to access beyond end of device loop7: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop7, logical block 10, lost async page write loop1: detected capacity change from 0 to 128 loop3: detected capacity change from 0 to 360 loop4: detected capacity change from 0 to 184 loop2: detected capacity change from 0 to 128 loop0: detected capacity change from 0 to 128 loop6: detected capacity change from 0 to 130 loop1: detected capacity change from 0 to 136 loop4: detected capacity change from 0 to 184 loop3: detected capacity change from 0 to 368 loop2: detected capacity change from 0 to 128 loop0: detected capacity change from 0 to 5168 loop6: detected capacity change from 0 to 1304 loop3: detected capacity change from 0 to 1352 loop1: detected capacity change from 0 to 5408 loop6: detected capacity change from 0 to 128 loop4: detected capacity change from 0 to 184 loop2: detected capacity change from 0 to 128 loop6: detected capacity change from 0 to 128 loop0: detected capacity change from 0 to 5152 loop3: detected capacity change from 0 to 128 loop1: detected capacity change from 0 to 1294 loop2: detected capacity change from 0 to 128 loop6: detected capacity change from 0 to 736 loop0: detected capacity change from 0 to 256 loop3: detected capacity change from 0 to 264 ISO 9660 Extensions: RRIP_1991A ISO 9660 Extensions: RRIP_1991A loop1: detected capacity change from 0 to 3520 loop3: detected capacity change from 0 to 760 loop6: detected capacity change from 0 to 312 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root loop0: detected capacity change from 0 to 3520 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root loop4: detected capacity change from 0 to 1300 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root loop1: detected capacity change from 0 to 764 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A loop3: detected capacity change from 0 to 1348 loop2: detected capacity change from 0 to 3520 loop6: detected capacity change from 0 to 128 loop1: detected capacity change from 0 to 764 ISO 9660 Extensions: Microsoft Joliet Level 3 loop0: detected capacity change from 0 to 5392 ISO 9660 Extensions: RRIP_1991A ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A loop3: detected capacity change from 0 to 320 loop1: detected capacity change from 0 to 764 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A ISO 9660 Extensions: RRIP_1991A loop6: detected capacity change from 0 to 3520 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root loop2: detected capacity change from 0 to 3504 loop4: detected capacity change from 0 to 184 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root loop0: detected capacity change from 0 to 4728 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root loop3: detected capacity change from 0 to 512 loop5: detected capacity change from 0 to 4096 loop7: detected capacity change from 0 to 512 loop6: detected capacity change from 0 to 512 loop1: detected capacity change from 0 to 764 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop7): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop6): mounted filesystem without journal. Quota mode: writeback. ext4 filesystem being mounted at /syzkaller-testdir728281722/syzkaller.MMoFLb/32/file0 supports timestamps until 2038 (0x7fffffff) loop2: detected capacity change from 0 to 2048 EXT4-fs (loop5): unmounting filesystem. EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. EXT4-fs (loop7): unmounting filesystem. EXT4-fs (loop6): unmounting filesystem. EXT4-fs (loop3): unmounting filesystem. EXT4-fs (loop2): unmounting filesystem. FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 4443 Comm: syz-executor.4 Tainted: G W 6.0.0-rc5-next-20220914 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 __do_sys_memfd_create+0x103/0x4e0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7feb41d9fb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007feb3f314f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007feb41d9fb19 RDX: 0000000000017000 RSI: 0000000000000000 RDI: 00007feb41df90fb RBP: 000000000000000e R08: 000000000000b800 R09: ffffffffffffffff R10: 000000000000000e R11: 0000000000000246 R12: 0000000008100000 R13: 0000000020000100 R14: 0000000000017000 R15: 0000000020011300 loop0: detected capacity change from 0 to 4728 ISO 9660 Extensions: Microsoft Joliet Level 3 loop5: detected capacity change from 0 to 4096 ISOFS: changing to secondary root loop7: detected capacity change from 0 to 512 loop6: detected capacity change from 0 to 2048 EXT4-fs (loop7): mounted filesystem without journal. Quota mode: none. loop3: detected capacity change from 0 to 512 loop2: detected capacity change from 0 to 2048 EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. EXT4-fs (loop6): mounted filesystem without journal. Quota mode: writeback. EXT4-fs (loop5): unmounting filesystem. EXT4-fs (loop7): unmounting filesystem. EXT4-fs (loop2): unmounting filesystem. EXT4-fs (loop3): unmounting filesystem. EXT4-fs (loop6): unmounting filesystem. loop5: detected capacity change from 0 to 4096 loop2: detected capacity change from 0 to 2048 loop7: detected capacity change from 0 to 512 loop0: detected capacity change from 0 to 4728 EXT4-fs (loop7): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. ISO 9660 Extensions: Microsoft Joliet Level 3 loop3: detected capacity change from 0 to 512 ISOFS: changing to secondary root loop6: detected capacity change from 0 to 2048 loop1: detected capacity change from 0 to 2048 EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none. loop4: detected capacity change from 0 to 184 EXT4-fs (loop2): unmounting filesystem. EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop6): mounted filesystem without journal. Quota mode: writeback. EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop3): unmounting filesystem. EXT4-fs (loop7): unmounting filesystem. EXT4-fs (loop5): unmounting filesystem. EXT4-fs (loop6): unmounting filesystem. loop2: detected capacity change from 0 to 2048 EXT4-fs (loop1): unmounting filesystem. loop7: detected capacity change from 0 to 512 loop6: detected capacity change from 0 to 2048 EXT4-fs (loop6): mounted filesystem without journal. Quota mode: writeback. EXT4-fs (loop7): mounted filesystem without journal. Quota mode: none. loop3: detected capacity change from 0 to 512 EXT4-fs (loop6): unmounting filesystem. loop1: detected capacity change from 0 to 512 loop5: detected capacity change from 0 to 4096 EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. loop0: detected capacity change from 0 to 4728 ISO 9660 Extensions: Microsoft Joliet Level 3 EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none. ISOFS: changing to secondary root loop6: detected capacity change from 0 to 2048 EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop7): unmounting filesystem. EXT4-fs (loop2): unmounting filesystem. EXT4-fs (loop3): unmounting filesystem. EXT4-fs (loop1): unmounting filesystem. EXT4-fs (loop6): mounted filesystem without journal. Quota mode: writeback. loop4: detected capacity change from 0 to 184 EXT4-fs (loop5): unmounting filesystem. EXT4-fs (loop6): unmounting filesystem. loop1: detected capacity change from 0 to 512 EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop1): unmounting filesystem. loop4: detected capacity change from 0 to 184 loop1: detected capacity change from 0 to 512 EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none. loop2: detected capacity change from 0 to 512 EXT4-fs (loop2): mounted filesystem without journal. Quota mode: none. loop3: detected capacity change from 0 to 640 loop5: detected capacity change from 0 to 4096 EXT4-fs (loop1): unmounting filesystem. EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. EXT4-fs (loop2): unmounting filesystem. EXT4-fs (loop3): mounted filesystem without journal. Quota mode: writeback. ext4 filesystem being mounted at /syzkaller-testdir207445055/syzkaller.mz2XkX/44/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs (loop5): unmounting filesystem. loop1: detected capacity change from 0 to 512 EXT4-fs (loop3): unmounting filesystem. EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none. loop2: detected capacity change from 0 to 4096 EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. EXT4-fs (loop1): unmounting filesystem. loop5: detected capacity change from 0 to 4096 EXT4-fs (loop2): unmounting filesystem. loop4: detected capacity change from 0 to 184 loop3: detected capacity change from 0 to 2560 EXT4-fs (loop5): mounted filesystem without journal. Quota mode: writeback. loop2: detected capacity change from 0 to 512 EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. ext4 filesystem being mounted at /syzkaller-testdir207445055/syzkaller.mz2XkX/45/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs (loop5): unmounting filesystem. loop5: detected capacity change from 0 to 4096 EXT4-fs (loop2): mounted filesystem without journal. Quota mode: none. loop3: detected capacity change from 0 to 2560 ext4 filesystem being mounted at /syzkaller-testdir207445055/syzkaller.mz2XkX/46/file0 supports timestamps until 2038 (0x7fffffff) loop5: detected capacity change from 0 to 4096 loop4: detected capacity change from 0 to 184 loop2: detected capacity change from 0 to 732 loop2: detected capacity change from 0 to 3520 loop3: detected capacity change from 0 to 2560 loop0: detected capacity change from 0 to 2304 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root ext4 filesystem being mounted at /syzkaller-testdir207445055/syzkaller.mz2XkX/47/file0 supports timestamps until 2038 (0x7fffffff) loop4: detected capacity change from 0 to 184 FAT-fs (loop4): bogus number of reserved sectors FAT-fs (loop4): Can't find a valid FAT filesystem loop2: detected capacity change from 0 to 3528 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root loop3: detected capacity change from 0 to 2560 ext4 filesystem being mounted at /syzkaller-testdir207445055/syzkaller.mz2XkX/48/file0 supports timestamps until 2038 (0x7fffffff) FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 4591 Comm: syz-executor.4 Tainted: G W 6.0.0-rc5-next-20220914 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa copyin+0x19/0x120 copy_page_from_iter_atomic+0x249/0x1290 generic_perform_write+0x2cb/0x580 __generic_file_write_iter+0x2da/0x480 generic_file_write_iter+0xe3/0x350 vfs_write+0x9c3/0xd90 __x64_sys_pwrite64+0x1fb/0x260 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7feb41d52ab7 Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b RSP: 002b:00007feb3f314f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007feb41de9970 RCX: 00007feb41d52ab7 RDX: 00000000000000e0 RSI: 0000000020010000 RDI: 0000000000000004 RBP: 000000000000000e R08: 0000000000000000 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000200 R15: 0000000000000000 loop4: detected capacity change from 0 to 184 loop2: detected capacity change from 0 to 2320 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A loop0: detected capacity change from 0 to 4728 ISO 9660 Extensions: Microsoft Joliet Level 3 ISOFS: changing to secondary root FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 4601 Comm: syz-executor.4 Tainted: G W 6.0.0-rc5-next-20220914 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa copyin+0x19/0x120 copy_page_from_iter_atomic+0x249/0x1290 generic_perform_write+0x2cb/0x580 __generic_file_write_iter+0x2da/0x480 generic_file_write_iter+0xe3/0x350 vfs_write+0x9c3/0xd90 __x64_sys_pwrite64+0x1fb/0x260 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7feb41d52ab7 Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b RSP: 002b:00007feb3f314f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007feb41de9970 RCX: 00007feb41d52ab7 RDX: 0000000000000040 RSI: 0000000020010100 RDI: 0000000000000004 RBP: 000000000000000e R08: 0000000000000000 R09: ffffffffffffffff R10: 00000000000001e0 R11: 0000000000000293 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000218 R15: 0000000000000001 loop6: detected capacity change from 0 to 2048 loop4: detected capacity change from 0 to 184 loop7: detected capacity change from 0 to 512 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 4612 Comm: syz-executor.4 Tainted: G W 6.0.0-rc5-next-20220914 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa copyin+0x19/0x120 copy_page_from_iter_atomic+0x249/0x1290 generic_perform_write+0x2cb/0x580 __generic_file_write_iter+0x2da/0x480 generic_file_write_iter+0xe3/0x350 vfs_write+0x9c3/0xd90 __x64_sys_pwrite64+0x1fb/0x260 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7feb41d52ab7 Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b RSP: 002b:00007feb3f314f20 EFLAGS: 00000293 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007feb41de9970 RCX: 00007feb41d52ab7 RDX: 0000000000000020 RSI: 0000000020010200 RDI: 0000000000000004 RBP: 000000000000000e R08: 0000000000000000 R09: ffffffffffffffff R10: 00000000000003e0 R11: 0000000000000293 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 4615 Comm: syz-executor.6 Tainted: G W 6.0.0-rc5-next-20220914 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 __do_sys_memfd_create+0x103/0x4e0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fcba7d77b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcba52ecf48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fcba7d77b19 RDX: 0000000000060000 RSI: 0000000000000000 RDI: 00007fcba7dd10fb RBP: 000000000000002a R08: 0000000000030000 R09: ffffffffffffffff R10: 000000000000002a R11: 0000000000000246 R12: 0000000008100000 R13: 0000000020000100 R14: 0000000000100000 R15: 0000000020013e00 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 4616 Comm: syz-executor.0 Tainted: G W 6.0.0-rc5-next-20220914 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 __do_sys_memfd_create+0x103/0x4e0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f88ea1d1b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f88e7746f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f88ea1d1b19 RDX: 000000000024f000 RSI: 0000000000000000 RDI: 00007f88ea22b0fb RBP: 00000000000000e2 R08: 0000000000127800 R09: ffffffffffffffff R10: 00000000000000e2 R11: 0000000000000246 R12: 0000000008100000 R13: 0000000020000100 R14: 000000000024f000 R15: 000000002001fa00 loop2: detected capacity change from 0 to 4096 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 loop4: detected capacity change from 0 to 184 CPU: 1 PID: 4620 Comm: syz-executor.7 Tainted: G W 6.0.0-rc5-next-20220914 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 __do_sys_memfd_create+0x103/0x4e0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f98d2123b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f98cf698f48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f98d2123b19 RDX: 0000000000014000 RSI: 0000000000000000 RDI: 00007f98d217d0fb RBP: 0000000000000013 R08: 000000000000a000 R09: ffffffffffffffff R10: 0000000000000013 R11: 0000000000000246 R12: 0000000008100000 R13: 0000000020000100 R14: 0000000000040000 R15: 0000000020013800