BUG: TASK stack guard page was hit at ffffc90002a9ffb8 (stack is ffffc90002aa0000..ffffc90002aa8000) stack guard page: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1669 Comm: syz.0.424 Not tainted 6.1.138-syzkaller-1169863-gdb710ea87c32 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:bpf_overflow_handler+0x77/0x5c0 kernel/events/core.c:10193 Code: 86 48 c7 44 24 50 c0 9f 97 81 4c 8d 7c 24 40 49 c1 ef 03 48 b8 f1 f1 f1 f1 00 00 00 f3 4b 89 04 2f 43 c7 44 2f 08 f3 f3 f3 f3 d4 50 d8 ff 4c 89 64 24 10 4c 89 64 24 68 4c 89 74 24 70 48 89 RSP: 0000:ffffc90002a9ffc0 EFLAGS: 00010806 RAX: f3000000f1f1f1f1 RBX: ffffc90002aa7f58 RCX: ffff88810db93cc0 RDX: ffffc90002aa7f58 RSI: ffffc90002aa7ac0 RDI: ffff88811fe4ce10 RBP: ffffc90002aa00b0 R08: dffffc0000000000 R09: ffffed1023fc9a31 R10: 0000000000000000 R11: ffffffff81979fc0 R12: ffffc90002aa7ac0 R13: dffffc0000000000 R14: ffff88811fe4ce10 R15: 1ffff92000554000 FS: 00007fb3f88f06c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90002a9ffb8 CR3: 0000000111b86000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_overflow_handler+0x77/0x5c0 kernel/events/core.c:10193 Code: 86 48 c7 44 24 50 c0 9f 97 81 4c 8d 7c 24 40 49 c1 ef 03 48 b8 f1 f1 f1 f1 00 00 00 f3 4b 89 04 2f 43 c7 44 2f 08 f3 f3 f3 f3 d4 50 d8 ff 4c 89 64 24 10 4c 89 64 24 68 4c 89 74 24 70 48 89 RSP: 0000:ffffc90002a9ffc0 EFLAGS: 00010806 RAX: f3000000f1f1f1f1 RBX: ffffc90002aa7f58 RCX: ffff88810db93cc0 RDX: ffffc90002aa7f58 RSI: ffffc90002aa7ac0 RDI: ffff88811fe4ce10 RBP: ffffc90002aa00b0 R08: dffffc0000000000 R09: ffffed1023fc9a31 R10: 0000000000000000 R11: ffffffff81979fc0 R12: ffffc90002aa7ac0 R13: dffffc0000000000 R14: ffff88811fe4ce10 R15: 1ffff92000554000 FS: 00007fb3f88f06c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90002a9ffb8 CR3: 0000000111b86000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 86 48 c7 xchg %cl,-0x39(%rax) 3: 44 24 50 rex.R and $0x50,%al 6: c0 9f 97 81 4c 8d 7c rcrb $0x7c,-0x72b37e69(%rdi) d: 24 40 and $0x40,%al f: 49 c1 ef 03 shr $0x3,%r15 13: 48 b8 f1 f1 f1 f1 00 movabs $0xf3000000f1f1f1f1,%rax 1a: 00 00 f3 1d: 4b 89 04 2f mov %rax,(%r15,%r13,1) 21: 43 c7 44 2f 08 f3 f3 movl $0xf3f3f3f3,0x8(%r15,%r13,1) 28: f3 f3 * 2a: e8 d4 50 d8 ff call 0xffd85103 <-- trapping instruction 2f: 4c 89 64 24 10 mov %r12,0x10(%rsp) 34: 4c 89 64 24 68 mov %r12,0x68(%rsp) 39: 4c 89 74 24 70 mov %r14,0x70(%rsp) 3e: 48 rex.W 3f: 89 .byte 0x89