R13: 00007ffc81140b2f R14: 00007f76c5ce0300 R15: 0000000000022000
loop3: detected capacity change from 0 to 264192
------------[ cut here ]------------
EXT4-fs (loop3): unsupported descriptor size 0
WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#1: in:imklog/175
Modules linked in:
CPU: 1 UID: 0 PID: 175 Comm: in:imklog Not tainted 6.18.0-rc2-next-20251024 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:get_data+0x364/0x400
Code: e8 83 e0 07 83 c0 03 38 d0 0f 8c be fe ff ff 84 d2 0f 84 b6 fe ff ff 48 89 ef e8 37 89 5b 00 e9 a9 fe ff ff e8 fd b6 1e 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 ec b6 1e 00 90 0f 0b 90 45 31
RSP: 0018:ffff88801574f768 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88801574f880 RCX: ffffffff81555256
RDX: ffff888017720000 RSI: ffffffff81555423 RDI: 0000000000000006
RBP: ffff88801574f848 R08: 0000000000001100 R09: 0000009102a229ea
R10: 0000000000000000 R11: 000019ff82000018 R12: ffffffff85d30690
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS: 00007fa08bd90700(0000) GS:ffff8880e54f4000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd114039fe8 CR3: 00000000160d5000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
_prb_read_valid+0x2f3/0x830
prb_read_valid+0x78/0xa0
syslog_print+0x37c/0x5c0
do_syslog.part.0+0x20b/0x5b0
do_syslog+0xcd/0x110
kmsg_read+0x8e/0xc0
proc_reg_read+0x120/0x310
vfs_read+0x1eb/0xc70
ksys_read+0x121/0x240
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa08c7d308c
Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 89 fc ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 48 89 44 24 08 e8 bf fc ff ff 48
RSP: 002b:00007fa08bd6f4d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa08c7d308c
RDX: 0000000000001fa0 RSI: 00007fa08bd6fd00 RDI: 0000000000000005
RBP: 000055906a39f4c0 R08: 0000000000000000 R09: 000055906a39be88
R10: a3d70a3d70a3d70b R11: 0000000000000246 R12: 00007fa08bd6fd00
R13: 0000000000001fa0 R14: 00007fa08bd6fd00 R15: 00007fa08bd707ad
irq event stamp: 20317
hardirqs last enabled at (20327): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (20334): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (19976): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (19935): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
EXT4-fs error (device loop5): __ext4_fill_super:5512: inode #2: comm syz-executor.5: iget: special inode unallocated
EXT4-fs (loop5): get root inode failed
EXT4-fs (loop5): mount failed
loop3: detected capacity change from 0 to 264192
EXT4-fs (loop3): unsupported descriptor size 0
loop3: detected capacity change from 0 to 264192
loop5: detected capacity change from 0 to 264192
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 UID: 0 PID: 6697 Comm: syz-executor.1 Tainted: G W 6.18.0-rc2-next-20251024 #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_cache_noprof+0x81/0x6b0
copy_net_ns+0x16f/0x690
create_new_namespaces+0x3f6/0xab0
copy_namespaces+0x45c/0x580
copy_process+0x26d4/0x7410
kernel_clone+0xea/0x7f0
__do_sys_clone3+0x1f5/0x280
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f07b06bcb19
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:00007f07adc32188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f07b07cff60 RCX: 00007f07b06bcb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880
RBP: 00007f07adc321d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffd7a01658f R14: 00007f07adc32300 R15: 0000000000022000
EXT4-fs (loop3): unsupported descriptor size 0
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 UID: 0 PID: 6699 Comm: syz-executor.0 Tainted: G W 6.18.0-rc2-next-20251024 #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_cache_noprof+0x81/0x6b0
copy_net_ns+0x16f/0x690
create_new_namespaces+0x3f6/0xab0
copy_namespaces+0x45c/0x580
copy_process+0x26d4/0x7410
kernel_clone+0xea/0x7f0
__do_sys_clone3+0x1f5/0x280
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f76c876ab19
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:00007f76c5ce0188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f76c887df60 RCX: 00007f76c876ab19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880
RBP: 00007f76c5ce01d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffc81140b2f R14: 00007f76c5ce0300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 UID: 0 PID: 6700 Comm: syz-executor.4 Tainted: G W 6.18.0-rc2-next-20251024 #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
kmem_cache_alloc_noprof+0x80/0x690
copy_net_ns+0x121/0x690
create_new_namespaces+0x3f6/0xab0
copy_namespaces+0x45c/0x580
copy_process+0x26d4/0x7410
kernel_clone+0xea/0x7f0
__do_sys_clone3+0x1f5/0x280
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2c107a1b19
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:00007f2c0dd17188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f2c108b4f60 RCX: 00007f2c107a1b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880
RBP: 00007f2c0dd171d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fff97bc019f R14: 00007f2c0dd17300 R15: 0000000000022000
EXT4-fs error (device loop5): __ext4_fill_super:5512: inode #2: comm syz-executor.5: iget: special inode unallocated
EXT4-fs (loop5): get root inode failed
EXT4-fs (loop5): mount failed