syzbot


fatal error: out of memory (2)

Status: fixed on 2020/01/31 18:49
Reported-by: syzbot+a1217044315dc85917b9@syzkaller.appspotmail.com
Fix commit: 4cb55a7a3b09 Prevent arbitrary size allocation when sending UDS messages.
First crash: 1568d, last: 1568d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor fatal error: out of memory (3) syz 3 1512d 1512d 0/26 fixed on 2020/03/12 21:53
gvisor fatal error: out of memory (4) C 13 436d 1504d 0/26 moderation: reported C repro on 2020/03/20 12:47
gvisor fatal error: out of memory 2 1893d 1875d 0/26 closed as invalid on 2019/08/13 21:47

Sample crash report:
fatal error: out of memory
DIAGNOSIS:
I0115 20:05:50.714821   57582 x:0] ***************************
I0115 20:05:50.714832   57582 x:0] Args: [/syzkaller/managers/ptrace-direct-overlay-host/current/image -root /syzkaller/managers/ptrace-direct-overlay-host/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=ptrace -file-access=shared -network=host debug -stacks --ps ci-gvisor-ptrace-direct-overlay-host-2]
I0115 20:05:50.714862   57582 x:0] Version release-20191213.0-117-gff78a721700f
I0115 20:05:50.714871   57582 x:0] PID: 57582
I0115 20:05:50.714878   57582 x:0] UID: 0, GID: 0
I0115 20:05:50.714882   57582 x:0] Configuration:
I0115 20:05:50.714886   57582 x:0] 		RootDir: /syzkaller/managers/ptrace-direct-overlay-host/workdir/gvisor_root
I0115 20:05:50.714890   57582 x:0] 		Platform: ptrace
I0115 20:05:50.714894   57582 x:0] 		FileAccess: shared, overlay: false
I0115 20:05:50.714902   57582 x:0] 		Network: host, logging: false
I0115 20:05:50.714913   57582 x:0] 		Strace: false, max size: 1024, syscalls: []
I0115 20:05:50.714918   57582 x:0] ***************************
D0115 20:05:50.714952   57582 x:0] Load container "/syzkaller/managers/ptrace-direct-overlay-host/workdir/gvisor_root" "ci-gvisor-ptrace-direct-overlay-host-2"
D0115 20:05:50.716359   57582 x:0] Signal container "ci-gvisor-ptrace-direct-overlay-host-2": signal 0
D0115 20:05:50.716384   57582 x:0] Signal sandbox "ci-gvisor-ptrace-direct-overlay-host-2"
D0115 20:05:50.716392   57582 x:0] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-2"
D0115 20:05:50.716725   57582 x:0] urpc: successfully marshalled 118 bytes.
I0115 20:05:52.670893   57582 x:0] Found sandbox "ci-gvisor-ptrace-direct-overlay-host-2", PID: 51058
I0115 20:05:52.670931   57582 x:0] Retrieving sandbox stacks
D0115 20:05:52.670936   57582 x:0] Stacks sandbox "ci-gvisor-ptrace-direct-overlay-host-2"
D0115 20:05:52.670943   57582 x:0] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-2"
D0115 20:05:52.671016   57582 x:0] urpc: successfully marshalled 36 bytes.
W0115 20:05:52.820261   57582 x:0] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-ptrace-direct-overlay-host-2" stacks: urpc method "debug.Stacks" failed: connection reset by peer
retrieving stacks: getting sandbox "ci-gvisor-ptrace-direct-overlay-host-2" stacks: urpc method "debug.Stacks" failed: connection reset by peer
W0115 20:05:52.820417   57582 x:0] Failure to execute command, err: 1

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/01/15 20:06 https://gvisor.googlesource.com/gvisor master ff78a721700f f9b69507 .config console log report ci-gvisor-ptrace-direct-overlay-host
* Struck through repros no longer work on HEAD.