Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: __schedule+0x143d/0x40d0 kernel/sched/core.c:-1
CPU: 1 PID: 4514 Comm: syz.4.26 Not tainted 6.1.142-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106
 panic+0x2c9/0x710 kernel/panic.c:339
 __stack_chk_fail+0x10/0x10 kernel/panic.c:767
 __schedule+0x143d/0x40d0 kernel/sched/core.c:-1
 preempt_schedule_irq+0xb1/0x150 kernel/sched/core.c:6873
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:696
RIP: 0010:filemap_get_read_batch+0x6f/0xa60 mm/filemap.c:2439
Code: 44 24 40 b3 8a b5 41 48 c7 44 24 48 1a a2 30 8c 48 c7 44 24 50 b0 aa ac 81 48 8d 44 24 40 48 c1 e8 03 42 c7 04 38 f1 f1 f1 f1 <42> c7 44 38 0b f3 f3 f3 f3 48 89 44 24 18 42 c6 44 38 0f f3 e8 48
RSP: 0018:ffffc90004f5e800 EFLAGS: 00000a02
RAX: 1ffff920009ebd08 RBX: 0000000000000000 RCX: ffffc90004f5eb40
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807231d598
RBP: ffffc90004f5e910 R08: dffffc0000000000 R09: ffffed100e463abf
R10: ffffed100e463abf R11: 1ffff1100e463abe R12: ffff88807231d598
R13: 0000000000000000 R14: ffff88807231d598 R15: dffffc0000000000
 filemap_get_pages mm/filemap.c:2667 [inline]
 filemap_read+0x61a/0x2f80 mm/filemap.c:2759
 generic_file_read_iter+0x115/0x670 mm/filemap.c:2914
 __kernel_read+0x2dc/0x6b0 fs/read_write.c:428
 integrity_kernel_read+0x86/0xd0 security/integrity/iint.c:228
 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:485 [inline]
 ima_calc_file_shash security/integrity/ima/ima_crypto.c:516 [inline]
 ima_calc_file_hash+0x96b/0x17c0 security/integrity/ima/ima_crypto.c:573
 ima_collect_measurement+0x4b3/0xac0 security/integrity/ima/ima_api.c:293
 process_measurement+0xfae/0x1a10 security/integrity/ima/ima_main.c:351
 ima_file_check+0xc2/0x100 security/integrity/ima/ima_main.c:534
 do_open fs/namei.c:3628 [inline]
 path_openat+0x2679/0x2e70 fs/namei.c:3783
 do_filp_open+0x1c1/0x3c0 fs/namei.c:3810
 do_sys_openat2+0x142/0x490 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x135/0x160 fs/open.c:1345
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0d7fb8e929
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0d80a0e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0d7fdb6080 RCX: 00007f0d7fb8e929
RDX: 0000000000143042 RSI: 00002000000000c0 RDI: ffffffffffffff9c
RBP: 00007f0d7fc10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0d7fdb6080 R15: 00007fff18510358
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess):
   0:	44 24 40             	rex.R and $0x40,%al
   3:	b3 8a                	mov    $0x8a,%bl
   5:	b5 41                	mov    $0x41,%ch
   7:	48 c7 44 24 48 1a a2 	movq   $0xffffffff8c30a21a,0x48(%rsp)
   e:	30 8c
  10:	48 c7 44 24 50 b0 aa 	movq   $0xffffffff81acaab0,0x50(%rsp)
  17:	ac 81
  19:	48 8d 44 24 40       	lea    0x40(%rsp),%rax
  1e:	48 c1 e8 03          	shr    $0x3,%rax
  22:	42 c7 04 38 f1 f1 f1 	movl   $0xf1f1f1f1,(%rax,%r15,1)
  29:	f1
* 2a:	42 c7 44 38 0b f3 f3 	movl   $0xf3f3f3f3,0xb(%rax,%r15,1) <-- trapping instruction
  31:	f3 f3
  33:	48 89 44 24 18       	mov    %rax,0x18(%rsp)
  38:	42 c6 44 38 0f f3    	movb   $0xf3,0xf(%rax,%r15,1)
  3e:	e8                   	.byte 0xe8
  3f:	48                   	rex.W