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syz-manager: add comment explaining why we don't set corrupted for repros

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This commit is contained in:
Dmitry Vyukov 2018-01-10 09:41:28 +01:00
parent 1f60c8289d
commit 02a19b646c
2 changed files with 29 additions and 0 deletions
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24
pkg/report/testdata/linux/report/152 vendored Normal file
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@ -0,0 +1,24 @@
TITLE: possible deadlock
CORRUPTED: Y
[....] Starting enhanced syslogd: rsyslogd[ 12.037795] audit: type=1400 audit(1515564630.515:5): avc: denied { syslog } for pid=3348 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
[?25l[?1c7[ ok 8[?25h[?0c.
Starting mcstransd:
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
syzkaller login: [ 19.781382] audit: type=1400 audit(1515564638.259:6): avc: denied { map } for pid=3488 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts.
net.ipv6.conf.syz0.accept_dad = 0
net.ipv6.conf.syz0.router_solicitations = 0
[ 26.145521] audit: type=1400 audit(1515564644.623:7): avc: denied { map } for pid=3502 comm="syzkaller898346" path="/root/syzkaller898346096" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[ 26.226655] audit: type=1400 audit(1515564644.704:8): avc: denied { map } for pid=3502 comm="syzkaller898346" path="/dev/ashmem" dev="devtmpfs" ino=1065 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:device_t:s0 tclass=chr_file permissive=1
[ 26.226985]
[ 26.226987] ======================================================
[ 26.226988] WARNING: possible circular locking dependency detected
[ 26.226991] 4.15.0-rc7+ #255 Not tainted
[ 26.226992] ------------------------------------------------------
[

5
syz-manager/manager.go
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@ -769,6 +769,11 @@ func (mgr *Manager) saveRepro(res *repro.Result, hub bool) {
}
if mgr.dash != nil {
// Note: we intentionally don't set Corrupted for reproducers:
// 1. This is reproducible so can be debugged even with corrupted report.
// 2. Repro re-tried 3 times and still got corrupted report at the end,
// so maybe corrupted report detection is broken.
// 3. Reproduction is expensive so it's good to persist the result.
dc := &dashapi.Crash{
BuildID: mgr.cfg.Tag,
Title: res.Report.Title,