R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee90ed72f R14: 00007f8dcc03f300 R15: 0000000000022000 kmemleak: Cannot allocate a scan area, scanning the full object ====================================================== WARNING: possible circular locking dependency detected 5.10.105 #1 Not tainted ------------------------------------------------------ syz-executor.1/9957 is trying to acquire lock: ffffffff84d0afe0 (console_owner){-.-.}-{0:0}, at: console_unlock+0x2e1/0xb30 kernel/printk/printk.c:2505 but task is already holding lock: ffff88800ceeed98 (&object->lock){..-.}-{2:2}, at: add_scan_area mm/kmemleak.c:801 [inline] ffff88800ceeed98 (&object->lock){..-.}-{2:2}, at: kmemleak_scan_area+0x80/0x350 mm/kmemleak.c:1087 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (&object->lock){..-.}-{2:2}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x36/0x50 kernel/locking/spinlock.c:159 __delete_object+0x87/0x100 mm/kmemleak.c:670 kmemleak_free_recursive include/linux/kmemleak.h:49 [inline] slab_free_hook mm/slub.c:1517 [inline] slab_free_freelist_hook+0x13a/0x180 mm/slub.c:1576 slab_free mm/slub.c:3149 [inline] kmem_cache_free+0xa7/0x310 mm/slub.c:3165 __sigqueue_free kernel/signal.c:611 [inline] collect_signal+0x2a4/0x520 kernel/signal.c:597 __dequeue_signal kernel/signal.c:619 [inline] dequeue_signal+0x322/0x620 kernel/signal.c:639 get_signal+0x6e9/0x2200 kernel/signal.c:2638 arch_do_signal+0x88/0x1b70 arch/x86/kernel/signal.c:805 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xf7/0x160 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x38/0x230 kernel/entry/common.c:266 entry_SYSCALL_64_after_hwframe+0x44/0xa9 -> #4 (&sighand->siglock){-.-.}-{2:2}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x36/0x50 kernel/locking/spinlock.c:159 __lock_task_sighand+0xd3/0x2f0 kernel/signal.c:1391 lock_task_sighand include/linux/sched/signal.h:693 [inline] task_work_add+0x1db/0x2b0 kernel/task_work.c:58 io_req_task_work_add fs/io_uring.c:2052 [inline] __io_async_wake+0x40b/0x8d0 fs/io_uring.c:4965 __wake_up_common+0x14c/0x4c0 kernel/sched/wait.c:93 __wake_up_common_lock+0xd0/0x130 kernel/sched/wait.c:123 tty_ldisc_lock+0x40/0xb0 drivers/tty/tty_ldisc.c:335 tty_ldisc_hangup+0x204/0x690 drivers/tty/tty_ldisc.c:744 __tty_hangup.part.0+0x510/0x9b0 drivers/tty/tty_io.c:624 __tty_hangup drivers/tty/tty_io.c:574 [inline] tty_vhangup drivers/tty/tty_io.c:697 [inline] tty_ioctl+0x120e/0x1830 drivers/tty/tty_io.c:2683 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x196/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 -> #3 (&tty->read_wait){....}-{2:2}: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x27/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] io_poll_double_wake+0x1f8/0x550 fs/io_uring.c:5078 __wake_up_common+0x14c/0x4c0 kernel/sched/wait.c:93 __wake_up_common_lock+0xd0/0x130 kernel/sched/wait.c:123 tty_ldisc_lock+0x55/0xb0 drivers/tty/tty_ldisc.c:336 tty_ldisc_hangup+0x204/0x690 drivers/tty/tty_ldisc.c:744 __tty_hangup.part.0+0x510/0x9b0 drivers/tty/tty_io.c:624 __tty_hangup drivers/tty/tty_io.c:574 [inline] tty_vhangup drivers/tty/tty_io.c:697 [inline] tty_ioctl+0x120e/0x1830 drivers/tty/tty_io.c:2683 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x196/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 -> #2 (&tty->write_wait){-.-.}-{2:2}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x36/0x50 kernel/locking/spinlock.c:159 __wake_up_common_lock+0xb4/0x130 kernel/sched/wait.c:122 tty_port_default_wakeup+0x26/0x40 drivers/tty/tty_port.c:50 serial8250_tx_chars+0x516/0xb40 drivers/tty/serial/8250/8250_port.c:1851 serial8250_handle_irq.part.0+0x3f1/0x4c0 drivers/tty/serial/8250/8250_port.c:1938 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1911 [inline] serial8250_default_handle_irq+0xb8/0x230 drivers/tty/serial/8250/8250_port.c:1954 serial8250_interrupt+0xf4/0x1a0 drivers/tty/serial/8250/8250_core.c:126 __handle_irq_event_percpu+0x2ef/0x820 kernel/irq/handle.c:156 handle_irq_event_percpu kernel/irq/handle.c:196 [inline] handle_irq_event+0x102/0x290 kernel/irq/handle.c:213 handle_edge_irq+0x249/0xd00 kernel/irq/chip.c:822 asm_call_irq_on_stack+0x12/0x20 __run_irq_on_irqstack arch/x86/include/asm/irq_stack.h:48 [inline] run_irq_on_irqstack_cond arch/x86/include/asm/irq_stack.h:101 [inline] handle_irq arch/x86/kernel/irq.c:230 [inline] __common_interrupt arch/x86/kernel/irq.c:249 [inline] common_interrupt+0xdd/0x190 arch/x86/kernel/irq.c:239 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:626 native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline] arch_local_irq_restore arch/x86/include/asm/irqflags.h:84 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0x25/0x40 kernel/locking/spinlock.c:191 spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] uart_write+0x304/0x580 drivers/tty/serial/serial_core.c:622 do_output_char+0x5e4/0x860 drivers/tty/n_tty.c:442 process_output drivers/tty/n_tty.c:509 [inline] n_tty_write+0x487/0xf90 drivers/tty/n_tty.c:2359 do_tty_write drivers/tty/tty_io.c:1028 [inline] file_tty_write.constprop.0+0x4f8/0x8d0 drivers/tty/tty_io.c:1118 redirected_tty_write+0xa1/0xc0 drivers/tty/tty_io.c:1125 call_write_iter include/linux/fs.h:1903 [inline] do_iter_readv_writev+0x476/0x750 fs/read_write.c:740 do_iter_write+0x18d/0x670 fs/read_write.c:866 vfs_writev+0x1aa/0x5e0 fs/read_write.c:939 do_writev+0x139/0x300 fs/read_write.c:982 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 -> #1 (&port_lock_key){-.-.}-{2:2}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x36/0x50 kernel/locking/spinlock.c:159 serial8250_console_write+0x8dd/0xb20 drivers/tty/serial/8250/8250_port.c:3330 call_console_drivers kernel/printk/printk.c:1909 [inline] console_unlock+0x826/0xb30 kernel/printk/printk.c:2530 register_console kernel/printk/printk.c:2871 [inline] register_console+0x53d/0x800 kernel/printk/printk.c:2761 univ8250_console_init+0x3a/0x46 drivers/tty/serial/8250/8250_core.c:690 console_init+0x361/0x4fa kernel/printk/printk.c:2981 start_kernel+0x2f2/0x49b init/main.c:985 secondary_startup_64_no_verify+0xc2/0xcb -> #0 (console_owner){-.-.}-{0:0}: check_prev_add kernel/locking/lockdep.c:2986 [inline] check_prevs_add kernel/locking/lockdep.c:3111 [inline] validate_chain kernel/locking/lockdep.c:3726 [inline] __lock_acquire+0x29e3/0x5b00 kernel/locking/lockdep.c:4952 lock_acquire kernel/locking/lockdep.c:5562 [inline] lock_acquire+0x197/0x490 kernel/locking/lockdep.c:5527 console_lock_spinning_enable kernel/printk/printk.c:1761 [inline] console_unlock+0x360/0xb30 kernel/printk/printk.c:2527 vprintk_emit+0x1da/0x4d0 kernel/printk/printk.c:2052 vprintk_func+0x8b/0x140 kernel/printk/printk_safe.c:401 printk+0xba/0xed kernel/printk/printk.c:2100 add_scan_area mm/kmemleak.c:803 [inline] kmemleak_scan_area+0x328/0x350 mm/kmemleak.c:1087 alloc_vmap_area+0x171/0x1d10 mm/vmalloc.c:1177 __get_vm_area_node+0x127/0x340 mm/vmalloc.c:2080 __vmalloc_node_range+0x13f/0x9e0 mm/vmalloc.c:2555 __vmalloc_node+0xb5/0x100 mm/vmalloc.c:2603 alloc_ldt_struct+0x10a/0x190 arch/x86/kernel/ldt.c:171 write_ldt+0x24f/0xa60 arch/x86/kernel/ldt.c:619 __do_sys_modify_ldt arch/x86/kernel/ldt.c:669 [inline] __se_sys_modify_ldt arch/x86/kernel/ldt.c:659 [inline] __x64_sys_modify_ldt+0x8f/0x130 arch/x86/kernel/ldt.c:659 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 other info that might help us debug this: Chain exists of: console_owner --> &sighand->siglock --> &object->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&object->lock); lock(&sighand->siglock); lock(&object->lock); lock(console_owner); *** DEADLOCK *** 3 locks held by syz-executor.1/9957: #0: ffff888047d9fb88 (&mm->context.ldt_usr_sem){++++}-{3:3}, at: write_ldt+0x1c4/0xa60 arch/x86/kernel/ldt.c:611 #1: ffff88800ceeed98 (&object->lock){..-.}-{2:2}, at: add_scan_area mm/kmemleak.c:801 [inline] #1: ffff88800ceeed98 (&object->lock){..-.}-{2:2}, at: kmemleak_scan_area+0x80/0x350 mm/kmemleak.c:1087 #2: ffffffff84deb360 (console_lock){+.+.}-{0:0}, at: vprintk_func+0x8b/0x140 kernel/printk/printk_safe.c:401 stack backtrace: CPU: 1 PID: 9957 Comm: syz-executor.1 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 check_noncircular+0x25f/0x2e0 kernel/locking/lockdep.c:2121 check_prev_add kernel/locking/lockdep.c:2986 [inline] check_prevs_add kernel/locking/lockdep.c:3111 [inline] validate_chain kernel/locking/lockdep.c:3726 [inline] __lock_acquire+0x29e3/0x5b00 kernel/locking/lockdep.c:4952 lock_acquire kernel/locking/lockdep.c:5562 [inline] lock_acquire+0x197/0x490 kernel/locking/lockdep.c:5527 console_lock_spinning_enable kernel/printk/printk.c:1761 [inline] console_unlock+0x360/0xb30 kernel/printk/printk.c:2527 vprintk_emit+0x1da/0x4d0 kernel/printk/printk.c:2052 vprintk_func+0x8b/0x140 kernel/printk/printk_safe.c:401 printk+0xba/0xed kernel/printk/printk.c:2100 add_scan_area mm/kmemleak.c:803 [inline] kmemleak_scan_area+0x328/0x350 mm/kmemleak.c:1087 alloc_vmap_area+0x171/0x1d10 mm/vmalloc.c:1177 __get_vm_area_node+0x127/0x340 mm/vmalloc.c:2080 __vmalloc_node_range+0x13f/0x9e0 mm/vmalloc.c:2555 __vmalloc_node+0xb5/0x100 mm/vmalloc.c:2603 alloc_ldt_struct+0x10a/0x190 arch/x86/kernel/ldt.c:171 write_ldt+0x24f/0xa60 arch/x86/kernel/ldt.c:619 __do_sys_modify_ldt arch/x86/kernel/ldt.c:669 [inline] __se_sys_modify_ldt arch/x86/kernel/ldt.c:659 [inline] __x64_sys_modify_ldt+0x8f/0x130 arch/x86/kernel/ldt.c:659 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8dceac9b19 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:00007f8dcc03f188 EFLAGS: 00000246 ORIG_RAX: 000000000000009a RAX: ffffffffffffffda RBX: 00007f8dcebdcf60 RCX: 00007f8dceac9b19 RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000001 RBP: 00007f8dcc03f1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee90ed72f R14: 00007f8dcc03f300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 9965 Comm: syz-executor.5 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc_trace+0x55/0x360 mm/slub.c:2921 kmalloc include/linux/slab.h:552 [inline] alloc_ldt_struct+0x4a/0x190 arch/x86/kernel/ldt.c:157 write_ldt+0x7cc/0xa60 arch/x86/kernel/ldt.c:619 __do_sys_modify_ldt arch/x86/kernel/ldt.c:669 [inline] __se_sys_modify_ldt arch/x86/kernel/ldt.c:659 [inline] __x64_sys_modify_ldt+0x8f/0x130 arch/x86/kernel/ldt.c:659 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f7610aaeb19 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:00007f760dfe2188 EFLAGS: 00000246 ORIG_RAX: 000000000000009a RAX: ffffffffffffffda RBX: 00007f7610bc20e0 RCX: 00007f7610aaeb19 RDX: 0000000000000010 RSI: 00000000200000c0 RDI: 0000000000000001 RBP: 00007f760dfe21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc73f3afdf R14: 00007f760dfe2300 R15: 0000000000022000 nfs4: Unknown parameter '&'@\}' EXT4-fs (loop3): mounting ext2 file system using the ext4 subsystem EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop3): group descriptors corrupted! netlink: 12 bytes leftover after parsing attributes in process `syz-executor.6'. FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 9978 Comm: syz-executor.7 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 _copy_from_user+0x2e/0x1b0 lib/usercopy.c:14 copy_from_user include/linux/uaccess.h:192 [inline] move_addr_to_kernel.part.0+0x31/0x110 net/socket.c:198 move_addr_to_kernel net/socket.c:196 [inline] __copy_msghdr_from_user+0x3dd/0x4b0 net/socket.c:2247 copy_msghdr_from_user net/socket.c:2275 [inline] sendmsg_copy_msghdr+0xa1/0x160 net/socket.c:2373 ___sys_sendmsg+0xc6/0x170 net/socket.c:2392 __sys_sendmmsg+0x195/0x470 net/socket.c:2486 __do_sys_sendmmsg net/socket.c:2515 [inline] __se_sys_sendmmsg net/socket.c:2512 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2512 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f0254e29b19 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:00007f025239f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f0254f3cf60 RCX: 00007f0254e29b19 RDX: 0000000000000001 RSI: 00000000200003c0 RDI: 0000000000000003 RBP: 00007f025239f1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdc9b13bcf R14: 00007f025239f300 R15: 0000000000022000 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.6'. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 9989 Comm: syz-executor.1 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] __kmalloc_node+0x76/0x4a0 mm/slub.c:4015 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kmalloc_node include/linux/slab.h:575 [inline] __vmalloc_area_node mm/vmalloc.c:2478 [inline] __vmalloc_node_range+0x79e/0x9e0 mm/vmalloc.c:2560 __vmalloc_node+0xb5/0x100 mm/vmalloc.c:2603 alloc_ldt_struct+0x10a/0x190 arch/x86/kernel/ldt.c:171 write_ldt+0x24f/0xa60 arch/x86/kernel/ldt.c:619 __do_sys_modify_ldt arch/x86/kernel/ldt.c:669 [inline] __se_sys_modify_ldt arch/x86/kernel/ldt.c:659 [inline] __x64_sys_modify_ldt+0x8f/0x130 arch/x86/kernel/ldt.c:659 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8dceac9b19 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:00007f8dcc03f188 EFLAGS: 00000246 ORIG_RAX: 000000000000009a RAX: ffffffffffffffda RBX: 00007f8dcebdcf60 RCX: 00007f8dceac9b19 RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000001 RBP: 00007f8dcc03f1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee90ed72f R14: 00007f8dcc03f300 R15: 0000000000022000 CPU: 1 PID: 9995 Comm: syz-executor.5 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x5b/0x350 mm/slub.c:2909 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc_trace+0x151/0x360 mm/slub.c:2921 kmalloc include/linux/slab.h:552 [inline] alloc_ldt_struct+0x4a/0x190 arch/x86/kernel/ldt.c:157 write_ldt+0x24f/0xa60 arch/x86/kernel/ldt.c:619 __do_sys_modify_ldt arch/x86/kernel/ldt.c:669 [inline] __se_sys_modify_ldt arch/x86/kernel/ldt.c:659 [inline] __x64_sys_modify_ldt+0x8f/0x130 arch/x86/kernel/ldt.c:659 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f7610aaeb19 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:00007f760e024188 EFLAGS: 00000246 ORIG_RAX: 000000000000009a RAX: ffffffffffffffda RBX: 00007f7610bc1f60 RCX: 00007f7610aaeb19 RDX: 0000000000000010 RSI: 00000000200000c0 RDI: 0000000000000001 RBP: 00007f760e0241d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc73f3afdf R14: 00007f760e024300 R15: 0000000000022000 EXT4-fs (loop3): mounting ext2 file system using the ext4 subsystem EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop3): group descriptors corrupted! FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 9998 Comm: syz-executor.7 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] __kmalloc+0x72/0x3e0 mm/slub.c:3967 kmalloc include/linux/slab.h:557 [inline] sock_kmalloc net/core/sock.c:2247 [inline] sock_kmalloc+0xb5/0x100 net/core/sock.c:2238 ____sys_sendmsg+0x661/0x870 net/socket.c:2315 ___sys_sendmsg+0xf3/0x170 net/socket.c:2396 __sys_sendmmsg+0x195/0x470 net/socket.c:2486 __do_sys_sendmmsg net/socket.c:2515 [inline] __se_sys_sendmmsg net/socket.c:2512 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2512 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f0254e29b19 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:00007f025239f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f0254f3cf60 RCX: 00007f0254e29b19 RDX: 0000000000000001 RSI: 00000000200003c0 RDI: 0000000000000003 RBP: 00007f025239f1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdc9b13bcf R14: 00007f025239f300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 10006 Comm: syz-executor.1 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x5b/0x350 mm/slub.c:2909 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] __kmalloc_node+0x1ae/0x4a0 mm/slub.c:4015 kmalloc_node include/linux/slab.h:575 [inline] __vmalloc_area_node mm/vmalloc.c:2478 [inline] __vmalloc_node_range+0x79e/0x9e0 mm/vmalloc.c:2560 __vmalloc_node+0xb5/0x100 mm/vmalloc.c:2603 alloc_ldt_struct+0x10a/0x190 arch/x86/kernel/ldt.c:171 write_ldt+0x24f/0xa60 arch/x86/kernel/ldt.c:619 __do_sys_modify_ldt arch/x86/kernel/ldt.c:669 [inline] __se_sys_modify_ldt arch/x86/kernel/ldt.c:659 [inline] __x64_sys_modify_ldt+0x8f/0x130 arch/x86/kernel/ldt.c:659 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8dceac9b19 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:00007f8dcc03f188 EFLAGS: 00000246 ORIG_RAX: 000000000000009a RAX: ffffffffffffffda RBX: 00007f8dcebdcf60 RCX: 00007f8dceac9b19 RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000001 RBP: 00007f8dcc03f1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffee90ed72f R14: 00007f8dcc03f300 R15: 0000000000022000 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.6'. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 10010 Comm: syz-executor.5 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] kmem_cache_alloc_node_trace+0x59/0x380 mm/slub.c:2946 kmalloc_node include/linux/slab.h:570 [inline] kzalloc_node include/linux/slab.h:675 [inline] __get_vm_area_node+0xd4/0x340 mm/vmalloc.c:2073 __vmalloc_node_range+0x13f/0x9e0 mm/vmalloc.c:2555 __vmalloc_node+0xb5/0x100 mm/vmalloc.c:2603 alloc_ldt_struct+0x10a/0x190 arch/x86/kernel/ldt.c:171 write_ldt+0x24f/0xa60 arch/x86/kernel/ldt.c:619 __do_sys_modify_ldt arch/x86/kernel/ldt.c:669 [inline] __se_sys_modify_ldt arch/x86/kernel/ldt.c:659 [inline] __x64_sys_modify_ldt+0x8f/0x130 arch/x86/kernel/ldt.c:659 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f7610aaeb19 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:00007f760e024188 EFLAGS: 00000246 ORIG_RAX: 000000000000009a RAX: ffffffffffffffda RBX: 00007f7610bc1f60 RCX: 00007f7610aaeb19 RDX: 0000000000000010 RSI: 00000000200000c0 RDI: 0000000000000001 RBP: 00007f760e0241d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc73f3afdf R14: 00007f760e024300 R15: 0000000000022000 syz-executor.5: vmalloc: allocation failure: 16424 bytes, mode:0xdc0(GFP_KERNEL|__GFP_ZERO), nodemask=(null),cpuset=syz5,mems_allowed=0 CPU: 1 PID: 10010 Comm: syz-executor.5 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 warn_alloc.cold+0x95/0x18a mm/page_alloc.c:3982 __vmalloc_node_range+0x58f/0x9e0 mm/vmalloc.c:2576 __vmalloc_node+0xb5/0x100 mm/vmalloc.c:2603 alloc_ldt_struct+0x10a/0x190 arch/x86/kernel/ldt.c:171 write_ldt+0x24f/0xa60 arch/x86/kernel/ldt.c:619 __do_sys_modify_ldt arch/x86/kernel/ldt.c:669 [inline] __se_sys_modify_ldt arch/x86/kernel/ldt.c:659 [inline] __x64_sys_modify_ldt+0x8f/0x130 arch/x86/kernel/ldt.c:659 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f7610aaeb19 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:00007f760e024188 EFLAGS: 00000246 ORIG_RAX: 000000000000009a RAX: ffffffffffffffda RBX: 00007f7610bc1f60 RCX: 00007f7610aaeb19 RDX: 0000000000000010 RSI: 00000000200000c0 RDI: 0000000000000001 RBP: 00007f760e0241d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc73f3afdf R14: 00007f760e024300 R15: 0000000000022000 Mem-Info: active_anon:48 inactive_anon:56801 isolated_anon:0 active_file:14132 inactive_file:48804 isolated_file:0 unevictable:0 dirty:438 writeback:0 slab_reclaimable:8852 slab_unreclaimable:66963 mapped:81266 shmem:121 pagetables:3644 bounce:0 free:140623 free_pcp:206 free_cma:0 Node 0 active_anon:192kB inactive_anon:227204kB active_file:56528kB inactive_file:195216kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:325064kB dirty:1752kB writeback:0kB shmem:484kB writeback_tmp:0kB kernel_stack:7168kB all_unreclaimable? no Node 0 DMA free:15908kB min:48kB low:60kB high:72kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 1621 1621 1621 Node 0 DMA32 free:546384kB min:5124kB low:6780kB high:8436kB reserved_highatomic:0KB active_anon:192kB inactive_anon:227204kB active_file:56528kB inactive_file:195216kB unevictable:0kB writepending:1752kB present:2080640kB managed:1664876kB mlocked:0kB pagetables:14576kB bounce:0kB free_pcp:788kB local_pcp:580kB free_cma:0kB EXT4-fs (loop3): mounting ext2 file system using the ext4 subsystem lowmem_reserve[]: 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock Node 0 DMA32: 326*4kB (ME) 191*8kB (UM) 80*16kB EXT4-fs (loop3): group descriptors corrupted! (UM) 13*32kB (UME) 39*64kB (UM) 33*128kB (UME) 16*256kB (UM) 3*512kB (UM) 3*1024kB (ME) 1*2048kB (U) 128*4096kB (UM) = 546288kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 26900 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 524158 pages RAM 0 pages HighMem/MovableOnly 103962 pages reserved FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 10023 Comm: syz-executor.7 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2821 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x5b/0x350 mm/slub.c:2909 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] __kmalloc+0x16e/0x3e0 mm/slub.c:3967 kmalloc include/linux/slab.h:557 [inline] sock_kmalloc net/core/sock.c:2247 [inline] sock_kmalloc+0xb5/0x100 net/core/sock.c:2238 ____sys_sendmsg+0x661/0x870 net/socket.c:2315 ___sys_sendmsg+0xf3/0x170 net/socket.c:2396 __sys_sendmmsg+0x195/0x470 net/socket.c:2486 __do_sys_sendmmsg net/socket.c:2515 [inline] __se_sys_sendmmsg net/socket.c:2512 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2512 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f0254e29b19 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:00007f025239f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f0254f3cf60 RCX: 00007f0254e29b19 RDX: 0000000000000001 RSI: 00000000200003c0 RDI: 0000000000000003 RBP: 00007f025239f1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffdc9b13bcf R14: 00007f025239f300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 10034 Comm: syz-executor.1 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 prepare_alloc_pages mm/page_alloc.c:4901 [inline] __alloc_pages_nodemask+0x182/0x680 mm/page_alloc.c:4943 alloc_pages_current+0x187/0x280 mm/mempolicy.c:2271 alloc_pages include/linux/gfp.h:547 [inline] __vmalloc_area_node mm/vmalloc.c:2494 [inline] __vmalloc_node_range+0x606/0x9e0 mm/vmalloc.c:2560 __vmalloc_node+0xb5/0x100 mm/vmalloc.c:2603 alloc_ldt_struct+0x10a/0x190 arch/x86/kernel/ldt.c:171 write_ldt+0x24f/0xa60 arch/x86/kernel/ldt.c:619 __do_sys_modify_ldt arch/x86/kernel/ldt.c:669 [inline] __se_sys_modify_ldt arch/x86/kernel/ldt.c:659 [inline] __x64_sys_modify_ldt+0x8f/0x130 arch/x86/kernel/ldt.c:659 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f8dceac9b19 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:00007f8dcc01e188 EFLAGS: 00000246 ORIG_RAX: 000000000000009a RAX: ffffffffffffffda RBX: 00007f8dcebdd020 RCX: 00007f8dceac9b19 RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000001 RBP: 00007f8dcc01e1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffee90ed72f R14: 00007f8dcc01e300 R15: 0000000000022000 EXT4-fs (loop3): VFS: Can't find ext4 filesystem FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 10043 Comm: syz-executor.5 Not tainted 5.10.105 #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 lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 _copy_to_user+0x2e/0x180 lib/usercopy.c:29 copy_to_user include/linux/uaccess.h:200 [inline] simple_read_from_buffer+0xcc/0x160 fs/libfs.c:729 proc_fail_nth_read+0x194/0x220 fs/proc/base.c:1423 vfs_read+0x228/0x580 fs/read_write.c:494 ksys_read+0x12d/0x250 fs/read_write.c:634 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f7610a6169c Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 fc ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 2f fd ff ff 48 RSP: 002b:00007f760dfe2170 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7610a6169c RDX: 000000000000000f RSI: 00007f760dfe21e0 RDI: 0000000000000003 RBP: 00007f760dfe21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc73f3afdf R14: 00007f760dfe2300 R15: 0000000000022000