syzbot


kernel panic: Got a walk from a symlink that wasn't ..!

Status: fixed on 2019/04/24 02:24
Reported-by: syzbot+2b1a1f196f3612be7660@syzkaller.appspotmail.com
Fix commit: 9413f2fdefd0 9ns: do not allow binding a symlink onto any other name
First crash: 2324d, last: 2043d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
akaros kernel panic: Got a walk from a symlink that wasn't ..! (2) 1 1475d 1475d 0/1 auto-closed as invalid on 2021/03/11 12:51

Sample crash report:
kernel panic at kern/src/ns/chan.c:803, from core 1: Got a walk from a symlink that wasn't ..!
Stack Backtrace on Core 1:
#01 [<0xffffffffc200a2dc>] in backtrace at src/kdebug.c:220
#02 [<0xffffffffc2009afd>] in _panic at src/init.c:268
#03 [<0xffffffffc2032ef4>] in walk at src/ns/chan.c:803
#04 [<0xffffffffc20333f9>] in __namec_from at src/ns/chan.c:1138
#05 [<0xffffffffc2033fdf>] in namec at src/ns/chan.c:1516
#06 [<0xffffffffc200e0df>] in foc_open at src/mm.c:141
#07 [<0xffffffffc205898e>] in sys_proc_create at src/syscall.c:807
#08 [<0xffffffffc2059409>] in syscall at src/syscall.c:2528
#09 [<0xffffffffc20595d4>] in run_local_syscall at src/syscall.c:2563
#10 [<0xffffffffc2059b09>] in prep_syscalls at src/syscall.c:2583
#11 [<0xffffffffc20ab36a>] in sysenter_callwrapper at arch/x86/trap.c:854

Crashes (14062):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/07/25 18:20 akaros 8dc899e19d0f 375a3e31 .config console log report syz C ci-akaros-main
2018/07/24 12:25 akaros c5f7000db927 9fe4bdc5 .config console log report syz C ci-akaros-main
2018/07/24 11:56 akaros c5f7000db927 9fe4bdc5 .config console log report syz C ci-akaros-main
2018/07/16 17:29 akaros 93b9607ebeff 40cb0c9a .config console log report syz C ci-akaros-main
2019/04/24 01:35 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/24 01:28 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/24 00:19 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/23 23:14 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/23 22:05 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/23 21:02 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/23 19:57 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/23 19:43 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/23 17:48 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/23 15:33 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/23 14:29 akaros c2355fc87bb2 2398edea .config console log report ci-akaros-main
2019/04/23 13:28 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 12:13 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 11:08 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 09:37 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 08:36 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 07:32 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 07:05 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 05:43 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 04:25 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 03:21 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 02:20 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/23 01:02 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/22 23:57 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/22 22:44 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/22 21:43 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/22 20:30 akaros c2355fc87bb2 53199d6e .config console log report ci-akaros-main
2019/04/22 19:59 akaros c2355fc87bb2 0a77c33c .config console log report ci-akaros-main
2019/04/22 18:09 akaros c2355fc87bb2 0a77c33c .config console log report ci-akaros-main
2019/04/22 17:07 akaros c2355fc87bb2 0a77c33c .config console log report ci-akaros-main
2019/04/22 16:04 akaros c2355fc87bb2 0a77c33c .config console log report ci-akaros-main
2019/04/22 14:45 akaros c2355fc87bb2 0a77c33c .config console log report ci-akaros-main
2019/04/22 13:20 akaros c2355fc87bb2 0a77c33c .config console log report ci-akaros-main
2019/04/22 12:02 akaros c2355fc87bb2 0a77c33c .config console log report ci-akaros-main
2019/04/22 10:27 akaros c2355fc87bb2 0a77c33c .config console log report ci-akaros-main
2019/04/22 09:16 akaros c2355fc87bb2 0a77c33c .config console log report ci-akaros-main
2019/04/22 08:12 akaros c2355fc87bb2 b0e8efcb .config console log report ci-akaros-main
2019/04/22 06:55 akaros c2355fc87bb2 b0e8efcb .config console log report ci-akaros-main
2019/04/22 04:36 akaros c2355fc87bb2 b0e8efcb .config console log report ci-akaros-main
2019/04/22 04:15 akaros c2355fc87bb2 b0e8efcb .config console log report ci-akaros-main
2019/04/22 03:08 akaros c2355fc87bb2 b0e8efcb .config console log report ci-akaros-main
2018/07/16 17:15 akaros 93b9607ebeff 40cb0c9a .config console log report ci-akaros-main
* Struck through repros no longer work on HEAD.