FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 4469 Comm: syz-executor.5 Not tainted 6.0.0-rc1-next-20220818 #1 BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1521 in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 4469, name: syz-executor.5 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 no locks held by syz-executor.5/4469. irq event stamp: 278 hardirqs last enabled at (277): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (278): [] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (272): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (245): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 4469 Comm: syz-executor.5 Not tainted 6.0.0-rc1-next-20220818 #1 syz-executor.5[4469] cmdline: /syz-executor.5 exec 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 __might_resched.cold+0x222/0x26b down_read_killable+0x75/0x490 __access_remote_vm+0xac/0x6f0 get_mm_cmdline.part.0+0x214/0x600 get_task_cmdline_kernel+0x1e9/0x230 dump_stack_print_cmdline.part.0+0x82/0x150 dump_stack_print_info+0x185/0x190 dump_stack_lvl+0x7f/0xb3 should_fail.cold+0x5/0xa strncpy_from_user+0x34/0x3e0 getname_flags.part.0+0x95/0x4f0 getname_flags+0x9a/0xe0 user_path_at_empty+0x2b/0x60 __x64_sys_name_to_handle_at+0x177/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f56bcc22b19 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:00007f56ba198188 EFLAGS: 00000246 ORIG_RAX: 000000000000012f RAX: ffffffffffffffda RBX: 00007f56bcd35f60 RCX: 00007f56bcc22b19 RDX: 00000000200000c0 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f56ba1981d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff5792f49f R14: 00007f56ba198300 R15: 0000000000022000 syz-executor.5[4469] cmdline: /syz-executor.5 exec 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 strncpy_from_user+0x34/0x3e0 getname_flags.part.0+0x95/0x4f0 getname_flags+0x9a/0xe0 user_path_at_empty+0x2b/0x60 __x64_sys_name_to_handle_at+0x177/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f56bcc22b19 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:00007f56ba198188 EFLAGS: 00000246 ORIG_RAX: 000000000000012f RAX: ffffffffffffffda RBX: 00007f56bcd35f60 RCX: 00007f56bcc22b19 RDX: 00000000200000c0 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f56ba1981d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff5792f49f R14: 00007f56ba198300 R15: 0000000000022000 loop7: detected capacity change from 0 to 264192 loop0: detected capacity change from 0 to 264192 loop4: detected capacity change from 0 to 140 EXT4-fs (loop4): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop4): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop4): unmounting filesystem. loop4: detected capacity change from 0 to 140 loop3: detected capacity change from 0 to 264192 loop6: detected capacity change from 0 to 264192 FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) EXT4-fs (loop4): warning: mounting unchecked fs, running e2fsck is recommended EXT4-fs (loop4): mounted filesystem without journal. Quota mode: none. loop2: detected capacity change from 0 to 264192 FAT-fs (loop3): bogus number of reserved sectors FAT-fs (loop3): Can't find a valid FAT filesystem EXT4-fs (loop4): unmounting filesystem. loop0: detected capacity change from 0 to 264192 FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 4511 Comm: syz-executor.5 Tainted: G W 6.0.0-rc1-next-20220818 #1 BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1521 in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 4511, name: syz-executor.5 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 no locks held by syz-executor.5/4511. irq event stamp: 300 hardirqs last enabled at (299): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (300): [] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (294): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (271): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 4511 Comm: syz-executor.5 Tainted: G W 6.0.0-rc1-next-20220818 #1 syz-executor.5[4511] cmdline: /syz-executor.5 exec 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 __might_resched.cold+0x222/0x26b down_read_killable+0x75/0x490 __access_remote_vm+0xac/0x6f0 get_mm_cmdline.part.0+0x214/0x600 get_task_cmdline_kernel+0x1e9/0x230 dump_stack_print_cmdline.part.0+0x82/0x150 dump_stack_print_info+0x185/0x190 dump_stack_lvl+0x7f/0xb3 should_fail.cold+0x5/0xa _copy_from_user+0x2a/0x170 do_sys_name_to_handle+0x135/0x4c0 __x64_sys_name_to_handle_at+0x1f5/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f56bcc22b19 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:00007f56ba198188 EFLAGS: 00000246 ORIG_RAX: 000000000000012f RAX: ffffffffffffffda RBX: 00007f56bcd35f60 RCX: 00007f56bcc22b19 RDX: 00000000200000c0 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f56ba1981d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff5792f49f R14: 00007f56ba198300 R15: 0000000000022000 syz-executor.5[4511] cmdline: /syz-executor.5 exec 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_name_to_handle+0x135/0x4c0 __x64_sys_name_to_handle_at+0x1f5/0x250 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f56bcc22b19 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:00007f56ba198188 EFLAGS: 00000246 ORIG_RAX: 000000000000012f RAX: ffffffffffffffda RBX: 00007f56bcd35f60 RCX: 00007f56bcc22b19 RDX: 00000000200000c0 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f56ba1981d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff5792f49f R14: 00007f56ba198300 R15: 0000000000022000