------------[ cut here ]------------
WARNING: fs/ext4/super.c:1322 at ext4_put_super+0xbe7/0xf30, CPU#0: syz-executor.5/4420
Modules linked in:
CPU: 0 UID: 0 PID: 4420 Comm: syz-executor.5 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:ext4_put_super+0xbe7/0xf30
Code: 7c ff 48 8d bd 00 02 00 00 e8 75 aa 66 00 31 ff 49 89 c4 48 89 c6 e8 08 c9 7c ff 4d 85 e4 0f 84 ff f9 ff ff e8 9a cd 7c ff 90 <0f> 0b 90 e9 f1 f9 ff ff e8 8c cd 7c ff 4c 89 ef e8 b4 09 4b ff c7
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
RSP: 0018:ffff888048137d08 EFLAGS: 00010216
CPU: 1 UID: 0 PID: 4440 Comm: syz-executor.3 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xfa/0x120
should_fail_ex+0x4d7/0x5e0
_copy_from_user+0x30/0xd0
copy_from_sockptr_offset.constprop.0+0x167/0x1a0
do_ipv6_setsockopt+0x1b3b/0x47b0
ipv6_setsockopt+0xcb/0x170
tcp_setsockopt+0xa9/0x110
do_sock_setsockopt+0xf7/0x1e0
__sys_setsockopt+0x11f/0x1a0
__x64_sys_setsockopt+0xbe/0x160
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa1923adb19
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:00007fa18f923188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fa1924c0f60 RCX: 00007fa1923adb19
RDX: 0000000000000037 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007fa18f9231d0 R08: 0000000000000040 R09: 0000000000000000
R10: 00000000200002c0 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffe860e617f R14: 00007fa18f923300 R15: 0000000000022000
RAX: 00000000000165a4 RBX: ffff8880171bc000 RCX: ffffc90009839000
RDX: 0000000000040000 RSI: ffffffff81f719e6 RDI: 0000000000000007
RBP: ffff8880171ba000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffff8880171bc618 R15: 0000000000000000
FS: 00007f8fc236b700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555919ce708 CR3: 000000000cbf2000 CR4: 0000000000350ef0
Call Trace:
generic_shutdown_super+0x15a/0x4a0
kill_block_super+0x3b/0x90
ext4_kill_sb+0x6c/0xb0
deactivate_locked_super+0xbf/0x1a0
deactivate_super+0xb1/0xd0
cleanup_mnt+0x2df/0x430
task_work_run+0x172/0x280
exit_to_user_mode_loop+0xef/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8fc4df704a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007f8fc236afa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffec RBX: 0000000020000200 RCX: 00007f8fc4df704a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f8fc236b000
RBP: 00007f8fc236b040 R08: 00007f8fc236b040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f8fc236b000 R15: 0000000020010f60
irq event stamp: 4897
hardirqs last enabled at (4907): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (4916): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (4832): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (4827): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop2: detected capacity change from 0 to 140
EXT4-fs (loop2): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 UID: 0 PID: 4456 Comm: syz-executor.3 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xfa/0x120
should_fail_ex+0x4d7/0x5e0
should_failslab+0xc2/0x120
__kmalloc_noprof+0xc8/0x6e0
sock_kmalloc+0x111/0x170
ipv6_renew_options+0x278/0x950
do_ipv6_setsockopt+0x1c1f/0x47b0
ipv6_setsockopt+0xcb/0x170
tcp_setsockopt+0xa9/0x110
do_sock_setsockopt+0xf7/0x1e0
__sys_setsockopt+0x11f/0x1a0
__x64_sys_setsockopt+0xbe/0x160
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa1923adb19
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:00007fa18f923188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fa1924c0f60 RCX: 00007fa1923adb19
RDX: 0000000000000037 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007fa18f9231d0 R08: 0000000000000040 R09: 0000000000000000
R10: 00000000200002c0 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffe860e617f R14: 00007fa18f923300 R15: 0000000000022000
loop4: detected capacity change from 0 to 140
loop5: detected capacity change from 0 to 140
loop2: detected capacity change from 0 to 140
EXT4-fs (loop4): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop5): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000.
EXT4-fs (loop2): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
loop4: detected capacity change from 0 to 140
EXT4-fs (loop4): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.