RBP: 00007fa18e9fc1d0 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000002
R13: 00007ffe6f1d2cef R14: 00007fa18e9fc300 R15: 0000000000022000
------------[ cut here ]------------
WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#0: syz-executor.0/32106
Modules linked in:
CPU: 0 UID: 0 PID: 32106 Comm: syz-executor.0 Not tainted 6.18.0-rc3-next-20251030 #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 17 b8 5b 00 e9 a9 fe ff ff e8 4d bb 1e 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 3c bb 1e 00 90 0f 0b 90 45 31
RSP: 0000:ffff88806ce08720 EFLAGS: 00010046
RAX: 0000000080010000 RBX: ffff88806ce08838 RCX: ffffffff81555746
RDX: ffff88804ccb1b80 RSI: ffffffff81555913 RDI: 0000000000000006
RBP: ffff88806ce08800 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85d30790
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS: 00005555648a2400(0000) GS:ffff8880e53f0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d221000 CR3: 0000000014fe2000 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
printk_get_next_message+0x10b/0x570
console_flush_one_record+0x64f/0xb20
__console_flush_and_unlock+0xb1/0x1d0
wake_up_klogd_work_func+0x17c/0x1e0
irq_work_single+0x128/0x260
irq_work_run_list+0x91/0xc0
update_process_times+0x12f/0x210
tick_nohz_handler+0x414/0x6d0
__hrtimer_run_queues+0x60f/0xac0
hrtimer_interrupt+0x369/0x830
__sysvec_apic_timer_interrupt+0xbb/0x330
sysvec_apic_timer_interrupt+0x6b/0x80
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:rcu_is_watching+0x5/0x70
Code: e8 60 f1 55 00 eb e4 48 c7 c7 00 12 c1 85 e8 62 f0 55 00 eb b1 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 53 <65> ff 05 14 e0 47 06 65 48 8b 1d 04 e0 47 06 48 8d bb 50 18 a4 87
RSP: 0000:ffff88804cc978e8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81eabe68
RDX: ffff88804ccb1b80 RSI: ffffffff81eac02d RDI: 0000000000000005
RBP: ffff888019286ac0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000010
R13: 0000000000003e51 R14: ffff88804cc97a20 R15: ffff88801c890c10
ext4_mark_iloc_dirty+0x1102/0x1cb0
__ext4_mark_inode_dirty+0x20b/0x7e0
ext4_dirty_inode+0xdd/0x130
__mark_inode_dirty+0x1b7/0x1490
generic_update_time+0xcb/0xf0
file_update_time+0x183/0x1c0
ext4_page_mkwrite+0x329/0x1710
do_page_mkwrite+0x17a/0x370
__handle_mm_fault+0x1058/0x3140
handle_mm_fault+0x2d8/0x750
do_user_addr_fault+0x844/0x1760
exc_page_fault+0xb0/0x180
asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7fa191424673
Code: 5d c3 0f 1f 44 00 00 48 8b 0d 59 ed 0a 01 48 8b 05 4a ed 0a 01 4c 8d 81 00 00 00 01 48 39 c8 72 13 4c 39 c0 73 0e 48 8d 50 04 <89> 38 48 89 15 2c ed 0a 01 c3 52 48 8d 35 77 b7 0b 00 48 89 c2 48
RSP: 002b:00007ffe6f1d2c78 EFLAGS: 00010287
RAX: 0000001b2d221000 RBX: 00007fa1911fe008 RCX: 0000001b2d220000
RDX: 0000001b2d221004 RSI: ffffffff84b9a716 RDI: 00000000c0ae6aa1
RBP: 0000000000000001 R08: 0000001b2e220000 R09: 0000001b2d220d90
R10: 0000000000000aa1 R11: 00000000c0ae6aa5 R12: 00000000000000c4
R13: 00007fa19158e000 R14: ffffffff84b9a716 R15: 00007fa191599ff0
irq event stamp: 1374
hardirqs last enabled at (1373): [] find_get_block_common+0x4b4/0xb00
hardirqs last disabled at (1374): [] sysvec_apic_timer_interrupt+0xf/0x80
softirqs last enabled at (1208): [] fpu_clone+0x146/0x740
softirqs last disabled at (1206): [] fpu_clone+0xd2/0x740
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: e8 60 f1 55 00 callq 0x55f165
5: eb e4 jmp 0xffffffeb
7: 48 c7 c7 00 12 c1 85 mov $0xffffffff85c11200,%rdi
e: e8 62 f0 55 00 callq 0x55f075
13: eb b1 jmp 0xffffffc6
15: 90 nop
16: 90 nop
17: 90 nop
18: 90 nop
19: 90 nop
1a: 90 nop
1b: 90 nop
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: 90 nop
24: 90 nop
25: f3 0f 1e fa endbr64
29: 53 push %rbx
* 2a: 65 ff 05 14 e0 47 06 incl %gs:0x647e014(%rip) # 0x647e045 <-- trapping instruction
31: 65 48 8b 1d 04 e0 47 mov %gs:0x647e004(%rip),%rbx # 0x647e03d
38: 06
39: 48 8d bb 50 18 a4 87 lea -0x785be7b0(%rbx),%rdi