loop1: detected capacity change from 0 to 136
ext4: Unknown parameter '[-CāĹAUYx'
iso9660: Unknown parameter 'Q('
loop1: detected capacity change from 0 to 136
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#1: syz-executor.5/290
Modules linked in:
CPU: 1 UID: 0 PID: 290 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:mntput_no_expire+0x78e/0xbe0
Code: 05 16 42 81 04 01 e8 31 f8 91 ff e9 41 fc ff ff e8 b7 50 b4 ff 31 ff 44 89 ee e8 dd 4b b4 ff 45 85 ed 79 09 e8 a3 50 b4 ff 90 <0f> 0b 90 e8 9a 50 b4 ff e8 75 f6 fb 02 31 ff 89 c5 89 c6 e8 ba 4b
RSP: 0018:ffff888016e4fc00 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11002dc9f85 RCX: ffffffff81bf96d3
RDX: ffff888017b1d280 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff88801e064380 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888016e4fc68
R13: 00000000ffffffff R14: dead000000000100 R15: ffff88801e064380
FS: 0000555581ed4400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe78863d58 CR3: 000000004286a000 CR4: 0000000000350ef0
Call Trace:
namespace_unlock+0x7f1/0x810
path_umount+0x6a4/0x1100
__x64_sys_umount+0x15c/0x190
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3f80d5ff87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 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:00007ffe78864498 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f3f80d5ff87
RDX: 00007ffe78864569 RSI: 000000000000000a RDI: 00007ffe78864560
RBP: 00007ffe78864560 R08: 00000000ffffffff R09: 00007ffe78864330
R10: 0000555581ed5c7b R11: 0000000000000202 R12: 00007f3f80db8105
R13: 00007ffe78865620 R14: 0000555581ed5c20 R15: 00007ffe78865660
irq event stamp: 159307
hardirqs last enabled at (159317): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (159326): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (159286): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (159281): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
kmemleak: Found object by alias at 0x607f1a638aec
CPU: 0 UID: 0 PID: 4016 Comm: syz-executor.6 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+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
get_signal+0x2315/0x2340
arch_do_signal_or_restart+0x80/0x790
exit_to_user_mode_loop+0x8b/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe99f161b19
Code: Unable to access opcode bytes at 0x7fe99f161aef.
RSP: 002b:00007fe99c6b6218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fe99f275028 RCX: 00007fe99f161b19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe99f275028
RBP: 00007fe99f275020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe99f27502c
R13: 00007ffe49fd972f R14: 00007fe99c6b6300 R15: 0000000000022000
kmemleak: Object (percpu) 0x607f1a638ae8 (size 8):
kmemleak: comm "syz-executor.7", pid 4001, jiffies 4294822751
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
__alloc_workqueue+0x74b/0x1820
alloc_workqueue_noprof+0xc7/0x200
loop_configure+0xf73/0x1590
lo_ioctl+0x66d/0x1c70
blkdev_ioctl+0x27c/0x6c0
__x64_sys_ioctl+0x18f/0x210
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
iso9660: Unknown parameter 'Q('
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#1: syz-executor.5/290
Modules linked in:
CPU: 1 UID: 0 PID: 290 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:mntput_no_expire+0x78e/0xbe0
Code: 05 16 42 81 04 01 e8 31 f8 91 ff e9 41 fc ff ff e8 b7 50 b4 ff 31 ff 44 89 ee e8 dd 4b b4 ff 45 85 ed 79 09 e8 a3 50 b4 ff 90 <0f> 0b 90 e8 9a 50 b4 ff e8 75 f6 fb 02 31 ff 89 c5 89 c6 e8 ba 4b
RSP: 0018:ffff888016e4fce0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11002dc9fa1 RCX: ffffffff81bf96d3
RDX: ffff888017b1d280 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff88801e064380 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000fffffffe R11: 0000000000000001 R12: ffff888016e4fd48
R13: 00000000fffffffe R14: ffff88801e064380 R15: ffff88801e064468
FS: 0000555581ed4400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3fd946f02c CR3: 000000004286a000 CR4: 0000000000350ef0
Call Trace:
path_umount+0x6e0/0x1100
__x64_sys_umount+0x15c/0x190
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3f80d5ff87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 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:00007ffe78864498 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 000000000000000d RCX: 00007f3f80d5ff87
RDX: 00007ffe78864569 RSI: 000000000000000a RDI: 00007ffe78864560
RBP: 00007ffe78864560 R08: 00000000ffffffff R09: 00007ffe78864330
R10: 0000555581ed5c7b R11: 0000000000000202 R12: 00007f3f80db8105
R13: 00007ffe78865620 R14: 0000555581ed5c20 R15: 00007ffe78865660
irq event stamp: 159807
hardirqs last enabled at (159815): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (159826): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (159644): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (159639): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---