general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 1 PID: 14445 Comm: syz-executor.1 Not tainted 5.15.120-syzkaller-00200-gd567dc0a2c02 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:__seqprop_raw_spinlock_sequence include/linux/seqlock.h:276 [inline] RIP: 0010:hrtimer_active kernel/time/hrtimer.c:1611 [inline] RIP: 0010:hrtimer_try_to_cancel+0x7d/0x320 kernel/time/hrtimer.c:1328 Code: 00 48 8b 5d c8 48 8b 45 d0 42 80 3c 38 00 74 08 48 89 df e8 45 17 51 00 48 8b 03 48 89 45 b0 4c 8d 60 10 4d 89 e5 49 c1 ed 03 <43> 0f b6 44 3d 00 84 c0 0f 85 00 01 00 00 41 8b 1c 24 89 de 83 e6 RSP: 0018:ffffc90000b47618 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff88810e745148 RCX: 1ffff11021ce8a2a RDX: ffffc900010d9000 RSI: 000000000000054a RDI: 000000000000054b RBP: ffffc90000b47670 R08: ffffffff83e40eba R09: ffffed1021ce8a03 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000010 R13: 0000000000000002 R14: ffff88810e745118 R15: dffffc0000000000 FS: 00007f3b07fcb6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe8f598fa8 CR3: 0000000113de4000 CR4: 00000000003506a0 Call Trace: hrtimer_cancel+0x17/0x50 kernel/time/hrtimer.c:1443 napi_disable+0x143/0x190 net/core/dev.c:6942 veth_napi_del_range drivers/net/veth.c:983 [inline] veth_napi_del drivers/net/veth.c:998 [inline] veth_set_features+0x1c8/0x300 drivers/net/veth.c:1426 __netdev_update_features+0x83c/0x1c10 net/core/dev.c:9992 netdev_update_features+0x6d/0x1c0 net/core/dev.c:10066 veth_xdp_set drivers/net/veth.c:1517 [inline] veth_xdp+0x468/0x5f0 drivers/net/veth.c:1530 dev_xdp_install+0x151/0x380 net/core/dev.c:9391 dev_xdp_attach+0xb52/0xdc0 net/core/dev.c:9539 dev_xdp_attach_link net/core/dev.c:9558 [inline] bpf_xdp_link_attach+0x27b/0x440 net/core/dev.c:9727 link_create+0x744/0x910 kernel/bpf/syscall.c:4287 __sys_bpf+0x5b4/0x760 kernel/bpf/syscall.c:4688 __do_sys_bpf kernel/bpf/syscall.c:4722 [inline] __se_sys_bpf kernel/bpf/syscall.c:4720 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:4720 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f3b09248b29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3b07fcb0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f3b09367f80 RCX: 00007f3b09248b29 RDX: 0000000000000010 RSI: 0000000020001300 RDI: 000000000000001c RBP: 00007f3b0929447a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f3b09367f80 R15: 00007ffe4c768458 Modules linked in: ---[ end trace 7b7f5de0ea385ca4 ]--- RIP: 0010:__seqprop_raw_spinlock_sequence include/linux/seqlock.h:276 [inline] RIP: 0010:hrtimer_active kernel/time/hrtimer.c:1611 [inline] RIP: 0010:hrtimer_try_to_cancel+0x7d/0x320 kernel/time/hrtimer.c:1328 Code: 00 48 8b 5d c8 48 8b 45 d0 42 80 3c 38 00 74 08 48 89 df e8 45 17 51 00 48 8b 03 48 89 45 b0 4c 8d 60 10 4d 89 e5 49 c1 ed 03 <43> 0f b6 44 3d 00 84 c0 0f 85 00 01 00 00 41 8b 1c 24 89 de 83 e6 RSP: 0018:ffffc90000b47618 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffff88810e745148 RCX: 1ffff11021ce8a2a RDX: ffffc900010d9000 RSI: 000000000000054a RDI: 000000000000054b RBP: ffffc90000b47670 R08: ffffffff83e40eba R09: ffffed1021ce8a03 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000010 R13: 0000000000000002 R14: ffff88810e745118 R15: dffffc0000000000 FS: 00007f3b07fcb6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3b07faad58 CR3: 0000000113de4000 CR4: 00000000003506a0 ---------------- Code disassembly (best guess): 0: 00 48 8b add %cl,-0x75(%rax) 3: 5d pop %rbp 4: c8 48 8b 45 enter $0x8b48,$0x45 8: d0 42 80 rolb -0x80(%rdx) b: 3c 38 cmp $0x38,%al d: 00 74 08 48 add %dh,0x48(%rax,%rcx,1) 11: 89 df mov %ebx,%edi 13: e8 45 17 51 00 call 0x51175d 18: 48 8b 03 mov (%rbx),%rax 1b: 48 89 45 b0 mov %rax,-0x50(%rbp) 1f: 4c 8d 60 10 lea 0x10(%rax),%r12 23: 4d 89 e5 mov %r12,%r13 26: 49 c1 ed 03 shr $0x3,%r13 * 2a: 43 0f b6 44 3d 00 movzbl 0x0(%r13,%r15,1),%eax <-- trapping instruction 30: 84 c0 test %al,%al 32: 0f 85 00 01 00 00 jne 0x138 38: 41 8b 1c 24 mov (%r12),%ebx 3c: 89 de mov %ebx,%esi 3e: 83 .byte 0x83 3f: e6 .byte 0xe6