syzbot


WARNING in inet_accept

Status: upstream: reported C repro on 2024/07/22 21:49
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+de23e25287a9901de470@syzkaller.appspotmail.com
First crash: 82d, last: 82d
Bug presence (2)
Date Name Commit Repro Result
2024/07/23 linux-5.15.y (ToT) 7c6d66f0266f C [report] WARNING in inet_accept
2024/07/23 upstream (ToT) 66ebbdfdeb09 C Didn't crash
Last patch testing requests (1)
Created Duration User Patch Repo Result
2024/10/04 07:19 20m retest repro linux-5.15.y OK log
Fix bisection attempts (2)
Created Duration User Patch Repo Result
2024/09/06 14:07 1m fix candidate upstream error job log
2024/07/30 22:34 1m fix candidate upstream error job log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3968 at net/ipv4/af_inet.c:764 inet_accept+0x2c8/0x3c0 net/ipv4/af_inet.c:762
Modules linked in:
CPU: 0 PID: 3968 Comm: syz-executor321 Not tainted 5.15.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : inet_accept+0x2c8/0x3c0 net/ipv4/af_inet.c:762
lr : inet_accept+0x2c8/0x3c0 net/ipv4/af_inet.c:762
sp : ffff80001d077a60
x29: ffff80001d077ae0 x28: ffff0000dfdbb610 x27: ffff80001d077aa0
x26: 1ffff00003a0ef50 x25: dfff800000000000 x24: ffff800016b4a9e0
x23: ffff0000c9df8000 x22: 0000000000000000 x21: ffff0000c9df9980
x20: ffff0000dfdbc200 x19: ffff80001d077aa0 x18: ffff80001d077600
x17: 0000000000000000 x16: ffff8000084c386c x15: 000000000000b882
x14: 1ffff0000292a06a x13: dfff800000000000 x12: 0000000000000003
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000da258000
x8 : ffff800010684b14 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80000804605c
x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 inet_accept+0x2c8/0x3c0 net/ipv4/af_inet.c:762
 do_accept+0x424/0x5d0 net/socket.c:1795
 __sys_accept4_file net/socket.c:1838 [inline]
 __sys_accept4+0x100/0x17c net/socket.c:1868
 __do_sys_accept4 net/socket.c:1880 [inline]
 __se_sys_accept4 net/socket.c:1877 [inline]
 __arm64_sys_accept4+0x9c/0xb8 net/socket.c:1877
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 1060
hardirqs last  enabled at (1059): [<ffff8000081b55fc>] __local_bh_enable_ip+0x230/0x470 kernel/softirq.c:388
hardirqs last disabled at (1060): [<ffff80001199fa20>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (1058): [<ffff80000fd6f0d8>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (1058): [<ffff80000fd6f0d8>] lock_sock_nested+0x160/0x1ec net/core/sock.c:3257
softirqs last disabled at (1056): [<ffff80000fd6f080>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (1056): [<ffff80000fd6f080>] lock_sock_nested+0x108/0x1ec net/core/sock.c:3253
---[ end trace 056b9728a23db060 ]---

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/07/22 23:05 linux-5.15.y 7c6d66f0266f df655b64 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in inet_accept
2024/07/22 21:48 linux-5.15.y 7c6d66f0266f df655b64 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in inet_accept
* Struck through repros no longer work on HEAD.