FAT-fs (loop2): Directory bread(block 8) failed FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 6111 Comm: syz-executor.2 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: 6111, name: syz-executor.2 preempt_count: 0, expected: 0 RCU nest depth: 0, expected: 0 loop1: no locks held by syz-executor.2/6111. irq event stamp: 1782 hardirqs last enabled at (1781): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1782): [] dump_stack_lvl+0x2e/0xb3 softirqs last enabled at (1530): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (1493): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 6111 Comm: syz-executor.2 Not tainted 6.0.0-rc1-next-20220818 #1 loop0: detected capacity change from 0 to 1 syz-executor.2[6111] cmdline: /syz-executor.2 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 do_utimes_path+0xd9/0x1b0 do_utimes+0x31/0xf0 __x64_sys_utimensat+0x190/0x260 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f345c931b19 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:00007f3459ea7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000118 RAX: ffffffffffffffda RBX: 00007f345ca44f60 RCX: 00007f345c931b19 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00007f3459ea71d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffddb0be75f R14: 00007f3459ea7300 R15: 0000000000022000 loop6: detected capacity change from 0 to 10 FAT-fs (loop0): bogus number of reserved sectors FAT-fs (loop0): Can't find a valid FAT filesystem loop5: detected capacity change from 0 to 10 FAT-fs (loop3): bogus number of reserved sectors FAT-fs (loop3): Can't find a valid FAT filesystem FAT-fs (loop1): Directory bread(block 17) failed syz-executor.2[6111] cmdline: /syz-executor.2 exec Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 FAT-fs (loop1): Directory bread(block 18) failed 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 do_utimes_path+0xd9/0x1b0 do_utimes+0x31/0xf0 __x64_sys_utimensat+0x190/0x260 FAT-fs (loop1): Directory bread(block 19) failed do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f345c931b19 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:00007f3459ea7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000118 RAX: ffffffffffffffda RBX: 00007f345ca44f60 RCX: 00007f345c931b19 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000005 FAT-fs (loop1): Directory bread(block 20) failed RBP: 00007f3459ea71d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffddb0be75f R14: 00007f3459ea7300 R15: 0000000000022000 FAT-fs (loop1): Directory bread(block 21) failed FAT-fs (loop1): Directory bread(block 22) failed FAT-fs (loop1): Directory bread(block 23) failed FAT-fs (loop1): Directory bread(block 24) failed FAT-fs (loop1): error, corrupted directory (invalid entries) FAT-fs (loop1): Filesystem has been set read-only FAT-fs (loop7): bogus number of reserved sectors FAT-fs (loop7): Can't find a valid FAT filesystem loop0: detected capacity change from 0 to 1 loop3: detected capacity change from 0 to 10 FAT-fs (loop0): invalid media value (0x00) FAT-fs (loop0): Can't find a valid FAT filesystem FAT-fs (loop3): bogus number of reserved sectors FAT-fs (loop3): Can't find a valid FAT filesystem loop6: detected capacity change from 0 to 10 loop5: detected capacity change from 0 to 10 loop4: detected capacity change from 0 to 10 loop1: detected capacity change from 0 to 10 FAT-fs (loop7): bogus number of reserved sectors FAT-fs (loop7): Can't find a valid FAT filesystem loop1: loop2: detected capacity change from 0 to 1 FAT-fs (loop1): Directory bread(block 17) failed FAT-fs (loop1): Directory bread(block 18) failed FAT-fs (loop1): Directory bread(block 19) failed FAT-fs (loop2): Directory bread(block 5) failed FAT-fs (loop1): Directory bread(block 20) failed FAT-fs (loop1): Directory bread(block 21) failed FAT-fs (loop1): Directory bread(block 22) failed FAT-fs (loop2): Directory bread(block 6) failed FAT-fs (loop1): Directory bread(block 23) failed FAT-fs (loop2): Directory bread(block 7) failed FAT-fs (loop1): Directory bread(block 24) failed FAT-fs (loop1): error, corrupted directory (invalid entries) FAT-fs (loop1): Filesystem has been set read-only FAT-fs (loop2): Directory bread(block 8) failed loop0: detected capacity change from 0 to 1 FAT-fs (loop2): Directory bread(block 5) failed FAT-fs (loop2): Directory bread(block 6) failed FAT-fs (loop0): invalid media value (0x00) FAT-fs (loop0): Can't find a valid FAT filesystem FAT-fs (loop2): Directory bread(block 7) failed FAT-fs (loop2): Directory bread(block 8) failed