kernel BUG in rxrpc_cleanup_call

Status: upstream: reported C repro on 2026/07/28 08:20
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+9de1d2948e7c210ef56e@syzkaller.appspotmail.com
First crash: 63d, last: 8h03m
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2026/09/15 linux-6.1.y (ToT) 1a8763b93150 C [report] kernel BUG in rxrpc_cleanup_call
2026/09/15 upstream (ToT) f6e7b42bf05b C Didn't crash
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 kernel BUG in rxrpc_cleanup_call origin:lts-only -1 syz, C 71 23h16m 63d 0/3 upstream: reported C repro on 2026/07/28 08:34

Sample crash report:
rxrpc: Assertion failed - 5(0x5) == 11(0xb) is false
------------[ cut here ]------------
kernel BUG at net/rxrpc/call_object.c:689!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4510 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : rxrpc_cleanup_call+0x1b0/0x1c8 net/rxrpc/call_object.c:689
lr : rxrpc_cleanup_call+0x1b0/0x1c8 net/rxrpc/call_object.c:689
sp : ffff8000214f7620
x29: ffff8000214f7620 x28: ffff0000d7af5ce0 x27: dfff800000000000
x26: ffff0000d7af5a40 x25: 0000000000000000 x24: 0000000000000001
x23: 0000000000000012 x22: ffff0000d7af5718 x21: dfff800000000000
x20: 0000000000000005 x19: ffff0000d7af5a40 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800011b90540 x15: 0000000000000000
x14: 0000000000000001 x13: 1ffff0000429ee2c x12: 0000000000000000
x11: ff00800008315480 x10: 0000000000000000 x9 : f459cb7ade519c00
x8 : f459cb7ade519c00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff8000214f70f8 x4 : ffff800015464e80 x3 : ffff80000a92841c
x2 : ffff00019f393d10 x1 : 0000000100000000 x0 : 0000000000000034
Call trace:
 rxrpc_cleanup_call+0x1b0/0x1c8 net/rxrpc/call_object.c:689
 rxrpc_service_prealloc_one+0x878/0xe80 net/rxrpc/call_accept.c:154
 rxrpc_user_charge_accept+0xc0/0x114 net/rxrpc/call_accept.c:458
 rxrpc_do_sendmsg+0x70c/0xeb4 net/rxrpc/sendmsg.c:677
 rxrpc_sendmsg+0x490/0x70c net/rxrpc/af_rxrpc.c:561
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x588/0x90c net/socket.c:2519
 ___sys_sendmsg net/socket.c:2573 [inline]
 __sys_sendmsg+0x288/0x374 net/socket.c:2602
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg net/socket.c:2609 [inline]
 __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2609
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: aa1403e2 52800164 52800165 942c267e (d4210000) 
---[ end trace 0000000000000000 ]---

Crashes (220):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/07/28 10:32 linux-6.1.y dc5c83b7f5f8 45ae1df4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/25 13:25 linux-6.1.y 1a8763b93150 f281d9d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/24 21:55 linux-6.1.y 1a8763b93150 3c3cdf19 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/19 11:09 linux-6.1.y 1a8763b93150 853b104b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/18 02:13 linux-6.1.y 1a8763b93150 8d7d05f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/15 22:46 linux-6.1.y 1a8763b93150 2daa4bb5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/12 10:48 linux-6.1.y cf82dcca9634 70a60e12 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/07 06:17 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/06 22:32 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/06 15:35 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/06 15:34 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/06 02:09 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/05 22:10 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/03 14:53 linux-6.1.y cf82dcca9634 6a988719 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in rxrpc_cleanup_call
2026/09/29 12:29 linux-6.1.y 1a8763b93150 7bf4ea23 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/28 20:33 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/27 18:49 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/27 15:12 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/26 23:41 linux-6.1.y 1a8763b93150 a3c7249d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/25 01:42 linux-6.1.y 1a8763b93150 3c3cdf19 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/24 11:55 linux-6.1.y 1a8763b93150 0281b448 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/24 01:23 linux-6.1.y 1a8763b93150 abce1216 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/21 10:49 linux-6.1.y 1a8763b93150 853b104b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/21 03:10 linux-6.1.y 1a8763b93150 853b104b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/15 21:33 linux-6.1.y 1a8763b93150 2daa4bb5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/13 09:59 linux-6.1.y cf82dcca9634 70a60e12 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/12 08:01 linux-6.1.y cf82dcca9634 70a60e12 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/11 02:27 linux-6.1.y cf82dcca9634 1fe56c0a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/10 06:33 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/10 06:32 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/10 03:14 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/09 02:29 linux-6.1.y cf82dcca9634 243b72f1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/07 03:59 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/07 01:16 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/06 21:25 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/06 14:33 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/06 09:42 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/06 00:46 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/05 20:27 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/05 09:45 linux-6.1.y cf82dcca9634 4f7b22a0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/09/03 10:42 linux-6.1.y cf82dcca9634 6a988719 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/08/31 13:21 linux-6.1.y d64a499eea6b 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/08/31 04:35 linux-6.1.y d64a499eea6b 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/08/30 16:33 linux-6.1.y d64a499eea6b 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/08/30 01:05 linux-6.1.y d64a499eea6b 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/08/29 15:00 linux-6.1.y d64a499eea6b 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/08/29 09:57 linux-6.1.y d64a499eea6b 2f52988a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
2026/07/28 08:20 linux-6.1.y dc5c83b7f5f8 45ae1df4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in rxrpc_cleanup_call
* Struck through repros no longer work on HEAD.