syzbot


BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit

Status: upstream: reported C repro on 2024/04/25 19:36
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+eb9803c2147c3ba51ed1@syzkaller.appspotmail.com
First crash: 464d, last: 4h14m
Bug presence (2)
Date Name Commit Repro Result
2025/01/05 linux-6.1.y (ToT) 7dc732d24ff7 C [report] BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/01/05 upstream (ToT) ab75170520d4 C Didn't crash
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit (2) 10 10 23d 143d 0/3 upstream: reported on 2025/03/12 05:19
linux-5.15 BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit 10 5 291d 350d 0/3 auto-obsoleted due to no activity on 2025/01/23 16:27
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2025/02/22 19:57 3h21m fix candidate upstream OK (0) job log

Sample crash report:
netlink: 'syz-executor764': attribute type 10 has an invalid length.
8021q: adding VLAN 0 to HW filter on device team0
bond0: (slave team0): Enslaving as an active interface with an up link
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 1eb26067 P4D 1eb26067 PUD 1eb25067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4251 Comm: syz-executor764 Not tainted 6.1.123-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90003d47078 EFLAGS: 00010246
RAX: 1ffffffff1728f3b RBX: ffffffff8b9479d8 RCX: 0000000000000000
RDX: ffffc90003d47120 RSI: 0000000000000001 RDI: ffff88802f560000
RBP: ffffc90003d471f0 R08: ffffffff85b6da91 R09: ffffed1005eac008
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88802f560000 R14: ffffc90003d47158 R15: ffffc90003d47158
FS:  000055557a92d380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000027dd0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bond_xdp_xmit+0x3fd/0x650 drivers/net/bonding/bond_main.c:5589
 bq_xmit_all+0xe73/0x12e0 kernel/bpf/devmap.c:392
 bq_enqueue+0x324/0x3b0 kernel/bpf/devmap.c:457
 dev_map_enqueue_multi+0xf8d/0x1100 kernel/bpf/devmap.c:656
 __xdp_do_redirect_frame net/core/filter.c:4317 [inline]
 xdp_do_redirect_frame+0x491/0x660 net/core/filter.c:4382
 xdp_test_run_batch net/bpf/test_run.c:314 [inline]
 bpf_test_run_xdp_live+0xbf4/0x1ea0 net/bpf/test_run.c:362
 bpf_prog_test_run_xdp+0x7d1/0x1130 net/bpf/test_run.c:1393
 bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3690
 __sys_bpf+0x3eb/0x6c0 kernel/bpf/syscall.c:5043
 __do_sys_bpf kernel/bpf/syscall.c:5129 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5127 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5127
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbcfd45e1d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd434c5f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbcfd45e1d9
RDX: 0000000000000050 RSI: 00000000200000c0 RDI: 000000000000000a
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90003d47078 EFLAGS: 00010246
RAX: 1ffffffff1728f3b RBX: ffffffff8b9479d8 RCX: 0000000000000000
RDX: ffffc90003d47120 RSI: 0000000000000001 RDI: ffff88802f560000
RBP: ffffc90003d471f0 R08: ffffffff85b6da91 R09: ffffed1005eac008
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88802f560000 R14: ffffc90003d47158 R15: ffffc90003d47158
FS:  000055557a92d380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000027dd0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (364):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/05 04:39 linux-6.1.y 7dc732d24ff7 f3558dbf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/08/02 23:21 linux-6.1.y 3594f306da12 7368264b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/08/01 12:49 linux-6.1.y 3594f306da12 40127d41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/08/01 12:38 linux-6.1.y 3594f306da12 40127d41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/31 17:23 linux-6.1.y 3594f306da12 0c075d67 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/31 05:47 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/31 04:17 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/31 02:48 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/31 01:08 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/30 18:51 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/30 17:46 linux-6.1.y 3594f306da12 f8f2b4da .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/29 07:10 linux-6.1.y 3594f306da12 c4a95487 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/28 15:41 linux-6.1.y 3594f306da12 6654ea9c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/28 10:15 linux-6.1.y 3594f306da12 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/27 11:19 linux-6.1.y 3594f306da12 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/26 05:09 linux-6.1.y 3594f306da12 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/26 02:34 linux-6.1.y 3594f306da12 fb8f743d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/24 15:10 linux-6.1.y 3594f306da12 65d60d73 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/24 13:44 linux-6.1.y 3594f306da12 65d60d73 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/24 11:50 linux-6.1.y 3594f306da12 65d60d73 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/24 09:41 linux-6.1.y 3594f306da12 0c1d6ded .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/24 05:08 linux-6.1.y 3369c6df2fae 0c1d6ded .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/24 02:31 linux-6.1.y 3369c6df2fae 0c1d6ded .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/24 02:17 linux-6.1.y 3369c6df2fae 0c1d6ded .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/23 19:18 linux-6.1.y 3369c6df2fae e1dd4f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/23 14:22 linux-6.1.y 3369c6df2fae e1dd4f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/23 09:19 linux-6.1.y 3369c6df2fae e1dd4f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/23 05:09 linux-6.1.y 3369c6df2fae e1dd4f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/22 20:26 linux-6.1.y 3369c6df2fae 8e9d1dc1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/21 11:42 linux-6.1.y 3369c6df2fae 56d87229 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/19 22:05 linux-6.1.y 3369c6df2fae 7117feec .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/16 10:08 linux-6.1.y f2198ea7eb3e 124ec9cc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/14 19:19 linux-6.1.y f2198ea7eb3e d8fc7335 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/14 13:41 linux-6.1.y dfc486ec9cce d8fc7335 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/13 23:55 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/13 16:17 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/10 22:55 linux-6.1.y dfc486ec9cce 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/05 09:32 linux-6.1.y 7e69c33e4858 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/04 17:04 linux-6.1.y 7e69c33e4858 d869b261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/04 05:47 linux-6.1.y 7e69c33e4858 76ad128c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/03 06:35 linux-6.1.y 7e69c33e4858 115ceea7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/02 06:58 linux-6.1.y 7e69c33e4858 bc80e4f0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/01 17:00 linux-6.1.y 7e69c33e4858 091a06cd .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/07/01 03:41 linux-6.1.y 7e69c33e4858 6e83b42d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2025/06/30 23:47 linux-6.1.y 7e69c33e4858 6e83b42d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
2024/04/25 19:36 linux-6.1.y 6741e066ec76 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf BUG: unable to handle kernel NULL pointer dereference in bond_xdp_xmit
* Struck through repros no longer work on HEAD.