kernel warning in syscall

Status: closed as dup on 2018/09/25 04:09
Reported-by: syzbot+f6346c574b0ec43e474d@syzkaller.appspotmail.com
First crash: 3016d, last: 3016d
▶ ▼ Duplicate of
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported
kernel warning in statcheck -1 syz, C 846880 2961d 3024d

Sample crash report:
 kernel warning at kern/src/ns/convM2D.c:52, from core 3: önbuf 121, STAT_FIX_LEN_9P 49 BIT16SZ 2, GBIT16(buf) 0 
_Stack Backtrace on Core 3:
š#01 [<0xffffffffc200a30c>Ø�Ø;ÁÝÄè´5‚kºlœ"47îí°q®$‚GžîëlG1]�¤ �¨3”RHì$®‚ÚЍ�x(ÄzSçÖ½"ôŒûÊøî&í«½`›+þ~lã:†[÷ µ]q_«Xɼ Hee=^ ¿‘±Üý#¾²¯oÎÄcin backtrace
`#02 [<0xffffffffc2009ba4>] in _warn
4#034 [<0xfffŸff«fffc2034cdéÉ(3Gd>] ã8in statchecS ¡ûŸk
kÑ#04…ê [<0û]xffffóff´ffcQWA203df88>] in vali»dstat
#05 [<0xffffffffc203efee>] in sysfwstat
|§{Ò°º¾ 4MîYŒ›#06 [<0xffffffffc2055d10>] in sys_fwstaÁ�Qt
#07 [<0xffffffffc20594d9>] in syscall at src/syscall.c:2462
#08 [<0xffffffffc20596a4>] in run_local_syscall at src/syscall.c:2497
#09 [<0xffffffffc2059bd9>] in prep_syscalls at src/syscall.c:2517
#10 [<0xffffffffc20ab56a>] in sysenter_callwrapper at arch/x86/trap.c:854
kernel warning at kern/src/ns/convM2D.c:52, from core 1: nbuf 76, STAT_FIX_LEN_9P 49 BIT16SZ 2, GBIT16(buf) 0 
Stack Backtrace on Core 1:
#01 [<0xffffffffc200a30c>] in backtrace at src/kdebug.c:220
#02 [<0xffffffffc2009ba4>] in _warn at src/init.c:323
#03 [<0xffffffffc2034cdd>] in statcheck at src/ns/convM2D.c:51
#04 [<0xffffffffc203df88>] in validstat at src/ns/sysfile.c:961
#05 [<0xffffffffc203efee>] in sysfwstat at src/ns/sysfile.c:421
#06 [<0xffffffffc2055d10>] in sys_fwstat at src/syscall.c:2271
#07 [<0xffffffffc20594d9>] in syscall at src/syscall.c:2462
#08 [<0xffffffffc20596a4>] in run_local_syscall at src/syscall.c:2497
#09 [<0xffffffffc2059bd9>] in prep_syscalls at src/syscall.c:2517
#10 [<0xffffffffc20ab56a>] in sysenter_callwrapper at arch/x86/trap.c:854

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/08/01 06:01 akaros 8b21413cae5f 8ef497b6 .config console log report ci-akaros-main
* Struck through repros no longer work on HEAD.