Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: vsnprintf+0x1da0/0x1da0 Oops: general protection fault, probably for non-canonical address 0x1ffff9200093dc04: 0000 [#2] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 5475 Comm: syz.0.39 Tainted: G B D 6.11.0-rc4-next-20240823-syzkaller #0 Tainted: [B]=BAD_PAGE, [D]=DIE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:vprintk_emit+0x8cb/0xa10 kernel/printk/printk.c:2409 Code: 0f b6 de 31 ff 89 de e8 83 37 20 00 31 c0 84 db 0f 95 c0 8d 7c 00 01 e8 53 7b 00 00 48 8b 44 24 18 48 c7 44 24 40 0e 36 e0 45 <49> c7 44 05 00 00 00 00 00 41 c7 44 05 09 00 00 00 00 66 41 c7 44 RSP: 0018:ffffc900049edfe0 EFLAGS: 00010046 RAX: 1ffff9200093dc04 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90004aa1000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc900049ee0f0 R08: ffffffff817523ec R09: ffffffff81751cc1 R10: 0000000000000003 R11: ffff8880766e0000 R12: ffffffff8e7d1b20 R13: 0000000000000000 R14: 00000000fffffffe R15: ffffc900049ee160 FS: 00007f617d5b56c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020bf2000 CR3: 0000000028eac000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__switch_to_asm+0x38/0x70 arch/x86/entry/entry_64.S:205 Code: 48 89 a7 98 18 00 00 48 8b a6 98 18 00 00 48 8b 9e d0 05 00 00 65 48 89 1d fd a9 ff 7e 49 c7 c4 10 00 00 00 e8 01 00 00 00 cc 01 00 00 00 cc 48 83 c4 10 49 ff cc 75 eb 0f ae e8 65 48 c7 05 RSP: 0018:ffffc900049eed28 EFLAGS: 00000296 RAX: 0000000000000000 RBX: ffff8880766e002c RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8ea4dfe0 RBP: ffffffff8100563d R08: ffffffff81fd1fd9 R09: 1ffffffff2038375 R10: dffffc0000000000 R11: fffffbfff2038376 R12: 0000000000000000 R13: 49cb87dc58fe4200 R14: 0000000000140dca R15: 0000000000000008 FS: 00007f617d5b56c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020bf2000 CR3: 0000000028eac000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 0f b6 de movzbl %dh,%ebx 3: 31 ff xor %edi,%edi 5: 89 de mov %ebx,%esi 7: e8 83 37 20 00 call 0x20378f c: 31 c0 xor %eax,%eax e: 84 db test %bl,%bl 10: 0f 95 c0 setne %al 13: 8d 7c 00 01 lea 0x1(%rax,%rax,1),%edi 17: e8 53 7b 00 00 call 0x7b6f 1c: 48 8b 44 24 18 mov 0x18(%rsp),%rax 21: 48 c7 44 24 40 0e 36 movq $0x45e0360e,0x40(%rsp) 28: e0 45 * 2a: 49 c7 44 05 00 00 00 movq $0x0,0x0(%r13,%rax,1) <-- trapping instruction 31: 00 00 33: 41 c7 44 05 09 00 00 movl $0x0,0x9(%r13,%rax,1) 3a: 00 00 3c: 66 data16 3d: 41 rex.B 3e: c7 .byte 0xc7 3f: 44 rex.R