loop3: detected capacity change from 0 to 136
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: kworker/0:2/58
Modules linked in:
CPU: 0 UID: 0 PID: 58 Comm: kworker/0:2 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
Workqueue: events free_ipc
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:ffff88800a737b48 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff110014e6f6e RCX: ffffffff81bf96d3
RDX: ffff88800a718000 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff88801f241dc0 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff88800a737bb0
R13: 00000000ffffffff R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffeff2e0fe8 CR3: 0000000040e3c000 CR4: 0000000000350ef0
Call Trace:
mntput+0x6b/0x90
free_ipc+0x179/0x2b0
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x34b/0x430
ret_from_fork_asm+0x1a/0x30
irq event stamp: 36703
hardirqs last enabled at (36711): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (36720): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (36456): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (36397): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current]
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 40 00
I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x4000 phys_seg 32 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current]
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 40 00 00 40 00
I/O error, dev sr0, sector 256 op 0x0:(READ) flags 0x4000 phys_seg 31 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current]
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 80 00 00 40 00
I/O error, dev sr0, sector 512 op 0x0:(READ) flags 0x4000 phys_seg 32 prio class 2
kmemleak: Found object by alias at 0x607f1a639a18
CPU: 0 UID: 0 PID: 4088 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
__x64_sys_exit_group+0x3e/0x50
x64_sys_call+0x18c5/0x18d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa874ee5b19
Code: Unable to access opcode bytes at 0x7fa874ee5aef.
RSP: 002b:00007ffdf3271c38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007fa874ee5b19
RDX: 00007fa874e9872b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000001b2d420578 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffdf3271d20
kmemleak: Object (percpu) 0x607f1a639a14 (size 8):
kmemleak: comm "syz-executor.7", pid 4089, jiffies 4294833052
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
alloc_vfsmnt+0x135/0x6e0
vfs_create_mount.part.0+0x40/0x440
fc_mount_longterm+0x126/0x160
mq_init_ns+0x42e/0x630
copy_ipcs+0x38d/0x630
create_new_namespaces+0x210/0xab0
copy_namespaces+0x45c/0x580
copy_process+0x2649/0x73c0
kernel_clone+0xea/0x7f0
__do_sys_clone+0xce/0x120
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current]
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 c0 00 00 40 00
I/O error, dev sr0, sector 768 op 0x0:(READ) flags 0x0 phys_seg 26 prio class 2