R13: 00007ffcf2d937ff R14: 00007f4c44baf300 R15: 0000000000022000
EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further
------------[ cut here ]------------
WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#0: in:imklog/175
Modules linked in:
CPU: 0 UID: 0 PID: 175 Comm: in:imklog Not tainted 6.18.0-rc2-next-20251027 #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 47 91 5b 00 e9 a9 fe ff ff e8 3d b7 1e 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 2c b7 1e 00 90 0f 0b 90 45 31
RSP: 0018:ffff888016257768 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888016257880 RCX: ffffffff81555756
RDX: ffff88800f680000 RSI: ffffffff81555923 RDI: 0000000000000006
RBP: ffff888016257848 R08: 0000000000001155 R09: 000000bac597c86c
R10: 0000000000000000 R11: 00001cd082000018 R12: ffffffff85d30650
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS: 00007f7e36c44700(0000) GS:ffff8880e53f4000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3098d94544 CR3: 000000000bfd5000 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: 0033:0x7f7e3768708c
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:00007f7e36c234d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7e3768708c
RDX: 0000000000001fa0 RSI: 00007f7e36c23d00 RDI: 0000000000000005
RBP: 0000557a934a14c0 R08: 0000000000000000 R09: 0000557a9349de88
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7e36c23d00
R13: 0000000000001fa0 R14: 00007f7e36c23d00 R15: 00007f7e36c23d71
irq event stamp: 20235
hardirqs last enabled at (20243): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (20252): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (20212): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (20207): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 UID: 0 PID: 7385 Comm: syz-executor.4 Tainted: G W 6.18.0-rc2-next-20251027 #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_node_track_caller_noprof+0xc6/0x690
kstrdup+0x3e/0xc0
kstrdup_const+0x57/0x80
alloc_vfsmnt+0xee/0x6e0
clone_mnt+0x49/0x900
copy_tree+0x34b/0xaf0
copy_mnt_ns+0x1b7/0xab0
create_new_namespaces+0xd6/0xab0
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: 0033:0x7f3098d14b19
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:00007f309628a188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f3098e27f60 RCX: 00007f3098d14b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 00000000200001c0
RBP: 00007f309628a1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007fff143180df R14: 00007f309628a300 R15: 0000000000022000