BUG: TASK stack guard page was hit at ffffc90013ccff98 (stack is ffffc90013cd0000..ffffc90013cd8000) Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 1477 Comm: syz.0.334 Not tainted syzkaller #0 f3a946831d5e2592ee08d6703df2b13566dbc460 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 c4 de 41 fd 48 c7 04 24 b3 8a b5 41 48 c7 44 24 08 56 05 1c 87 RSP: 0018:ffffc90013ccffa0 EFLAGS: 00010286 RAX: ffffffff8445bb6d RBX: ffff888117f2a908 RCX: ffff888116f33900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888117f2a908 RBP: ffffc90013cd0170 R08: ffff888117f2a967 R09: 0000000000000000 R10: ffff888117f2a958 R11: ffffed1022fe552d R12: 1ffff11023110aec R13: 1ffff11022fe552b R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f862b8216c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90013ccff98 CR3: 000000011b4fe000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 00000000000053cf DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 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 c4 de 41 fd 48 c7 04 24 b3 8a b5 41 48 c7 44 24 08 56 05 1c 87 RSP: 0018:ffffc90013ccffa0 EFLAGS: 00010286 RAX: ffffffff8445bb6d RBX: ffff888117f2a908 RCX: ffff888116f33900 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888117f2a908 RBP: ffffc90013cd0170 R08: ffff888117f2a967 R09: 0000000000000000 R10: ffff888117f2a958 R11: ffffed1022fe552d R12: 1ffff11023110aec R13: 1ffff11022fe552b R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f862b8216c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90013ccff98 CR3: 000000011b4fe000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 00000000000053cf DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- 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 c4 de 41 fd call 0xfd41def3 <-- trapping instruction 2f: 48 c7 04 24 b3 8a b5 movq $0x41b58ab3,(%rsp) 36: 41 37: 48 c7 44 24 08 56 05 movq $0xffffffff871c0556,0x8(%rsp) 3e: 1c 87