Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: __schedule+0x1440/0x40b0 kernel/sched/core.c:-1 CPU: 1 PID: 5158 Comm: syz.1.24 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Call Trace: 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+0x1440/0x40b0 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:folio_batch_add include/linux/pagevec.h:129 [inline] RIP: 0010:filemap_get_read_batch+0x2d6/0xa60 mm/filemap.c:2457 Code: 89 e7 e8 cd 2f ff ff 49 39 c5 0f 85 f9 02 00 00 48 8b 44 24 30 42 0f b6 04 38 84 c0 0f 85 1b 03 00 00 48 8b 4c 24 20 0f b6 01 <44> 8d 70 01 44 88 31 48 8b 4c 24 38 48 8d 1c c1 48 89 d8 48 c1 e8 RSP: 0018:ffffc90003716820 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffea000181a0b4 RCX: ffffc90003716b60 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90003716930 R08: dffffc0000000000 R09: fffff94000303417 R10: fffff94000303417 R11: 1ffffd4000303416 R12: ffffc90003716880 R13: ffffea000181a080 R14: 0000000000000001 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_open fs/open.c:1342 [inline] __se_sys_open fs/open.c:1338 [inline] __x64_sys_open+0x11b/0x140 fs/open.c:1338 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: 0033:0x7f3c8d98e969 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:00007f3c8e756038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007f3c8dbb6080 RCX: 00007f3c8d98e969 RDX: 1df2a23c5997fa5f RSI: 0000000000080242 RDI: 0000200000000580 RBP: 00007f3c8da10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f3c8dbb6080 R15: 00007ffc0d7824b8 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess): 0: 89 e7 mov %esp,%edi 2: e8 cd 2f ff ff call 0xffff2fd4 7: 49 39 c5 cmp %rax,%r13 a: 0f 85 f9 02 00 00 jne 0x309 10: 48 8b 44 24 30 mov 0x30(%rsp),%rax 15: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax 1a: 84 c0 test %al,%al 1c: 0f 85 1b 03 00 00 jne 0x33d 22: 48 8b 4c 24 20 mov 0x20(%rsp),%rcx 27: 0f b6 01 movzbl (%rcx),%eax * 2a: 44 8d 70 01 lea 0x1(%rax),%r14d <-- trapping instruction 2e: 44 88 31 mov %r14b,(%rcx) 31: 48 8b 4c 24 38 mov 0x38(%rsp),%rcx 36: 48 8d 1c c1 lea (%rcx,%rax,8),%rbx 3a: 48 89 d8 mov %rbx,%rax 3d: 48 rex.W 3e: c1 .byte 0xc1 3f: e8 .byte 0xe8