loop2: detected capacity change from 0 to 264192
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 1
CPU: 0 PID: 5561 Comm: syz-executor.7 Not tainted 6.0.0-rc1-next-20220819 #1
BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1521
in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 5561, name: syz-executor.7
preempt_count: 0, expected: 0
RCU nest depth: 0, expected: 0
no locks held by syz-executor.7/5561.
irq event stamp: 498
hardirqs last  enabled at (497): [<ffffffff812bd8c8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (498): [<ffffffff8411f196>] dump_stack_lvl+0x2e/0xb3
softirqs last  enabled at (492): [<ffffffff8116ba5b>] __irq_exit_rcu+0x11b/0x180
softirqs last disabled at (473): [<ffffffff8116ba5b>] __irq_exit_rcu+0x11b/0x180
CPU: 0 PID: 5561 Comm: syz-executor.7 Not tainted 6.0.0-rc1-next-20220819 #1
syz-executor.7[5561] cmdline: /syz-executor.7 exec
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 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_open_tree+0x278/0x430
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f503f764b19
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:00007f503ccda188 EFLAGS: 00000246 ORIG_RAX: 00000000000001ac
RAX: ffffffffffffffda RBX: 00007f503f877f60 RCX: 00007f503f764b19
RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007f503ccda1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc4224be7f R14: 00007f503ccda300 R15: 0000000000022000
 </TASK>
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir119760419/syzkaller.XT6XCB/56/file0 supports timestamps until 2038 (0x7fffffff)
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
syz-executor.7[5561] cmdline: /syz-executor.7 exec
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
 <TASK>
 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_open_tree+0x278/0x430
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f503f764b19
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:00007f503ccda188 EFLAGS: 00000246 ORIG_RAX: 00000000000001ac
RAX: ffffffffffffffda RBX: 00007f503f877f60 RCX: 00007f503f764b19
RDX: 0000000000000000 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007f503ccda1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc4224be7f R14: 00007f503ccda300 R15: 0000000000022000
 </TASK>
blktrace: Concurrent blktraces are not allowed on sg0
EXT4-fs (loop0): unmounting filesystem.
loop0: detected capacity change from 0 to 2048
EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none.
ext4 filesystem being mounted at /syzkaller-testdir119760419/syzkaller.XT6XCB/57/file0 supports timestamps until 2038 (0x7fffffff)
EXT4-fs (loop0): unmounting filesystem.