BUG: TASK stack guard page was hit at ffffc90010fb7f98 (stack is ffffc90010fb8000..ffffc90010fc0000) Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 1280 Comm: syz.3.295 Not tainted syzkaller #0 779e51c580eeebda7e507de47dcd3aa9ed4d0736 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:>::container_of+0x27/0x380 rust/kernel/sync/arc.rs:147 Code: 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 54 53 48 83 e4 e0 48 81 ec a0 01 00 00 48 89 fb 49 be 00 00 00 00 00 fc ff df 94 d5 41 fd 48 c7 04 24 b3 8a b5 41 48 c7 44 24 08 fe 09 1c 87 RSP: 0018:ffffc90010fb7fa0 EFLAGS: 00010286 RAX: ffffffff8445c49d RBX: ffff88810fbe6008 RCX: 0000000000080000 RDX: ffffc90001e73000 RSI: 000000000000b21a RDI: ffff88810fbe6008 RBP: ffffc90010fb8170 R08: ffff88810fbe6067 R09: 0000000000000000 R10: ffff88810fbe6058 R11: ffffed1021f7cc0d R12: 1ffff110228dd1cc R13: 1ffff11021f7cc0b R14: dffffc0000000000 R15: 0000000000000000 FS: 00007fdefb88a6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90010fb7f98 CR3: 00000001210ce000 CR4: 00000000003526b0 Call Trace: Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:>::container_of+0x27/0x380 rust/kernel/sync/arc.rs:147 Code: 90 90 90 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 54 53 48 83 e4 e0 48 81 ec a0 01 00 00 48 89 fb 49 be 00 00 00 00 00 fc ff df 94 d5 41 fd 48 c7 04 24 b3 8a b5 41 48 c7 44 24 08 fe 09 1c 87 RSP: 0018:ffffc90010fb7fa0 EFLAGS: 00010286 RAX: ffffffff8445c49d RBX: ffff88810fbe6008 RCX: 0000000000080000 RDX: ffffc90001e73000 RSI: 000000000000b21a RDI: ffff88810fbe6008 RBP: ffffc90010fb8170 R08: ffff88810fbe6067 R09: 0000000000000000 R10: ffff88810fbe6058 R11: ffffed1021f7cc0d R12: 1ffff110228dd1cc R13: 1ffff11021f7cc0b R14: dffffc0000000000 R15: 0000000000000000 FS: 00007fdefb88a6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90010fb7f98 CR3: 00000001210ce000 CR4: 00000000003526b0 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: f3 0f 1e fa endbr64 7: 55 push %rbp 8: 48 89 e5 mov %rsp,%rbp b: 41 57 push %r15 d: 41 56 push %r14 f: 41 54 push %r12 11: 53 push %rbx 12: 48 83 e4 e0 and $0xffffffffffffffe0,%rsp 16: 48 81 ec a0 01 00 00 sub $0x1a0,%rsp 1d: 48 89 fb mov %rdi,%rbx 20: 49 be 00 00 00 00 00 movabs $0xdffffc0000000000,%r14 27: fc ff df * 2a: e8 94 d5 41 fd call 0xfd41d5c3 <-- trapping instruction 2f: 48 c7 04 24 b3 8a b5 movq $0x41b58ab3,(%rsp) 36: 41 37: 48 c7 44 24 08 fe 09 movq $0xffffffff871c09fe,0x8(%rsp) 3e: 1c 87