[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [Bug 1837094] Re: UndefinedBehaviorSanitizer crash around s
From: |
Philippe Mathieu-Daudé |
Subject: |
[Qemu-devel] [Bug 1837094] Re: UndefinedBehaviorSanitizer crash around slirp::ip_reass() |
Date: |
Thu, 18 Jul 2019 17:58:55 -0000 |
** Description changed:
tag: v4.1.0-rc1
./configure --enable-sanitizers --extra-cflags=-O1
- ==26130==ERROR: UndefinedBehaviorSanitizer: SEGV on unknown address
0x000000000008 (pc 0x00000046d588 bp 0x7fff6ee9f940 sp 0x7fff6ee9f8e8 T26130)
+ ==26130==ERROR: UndefinedBehaviorSanitizer: SEGV on unknown address
0x000000000008 (pc 0x0000561ad346d588 bp 0x7fff6ee9f940 sp 0x7fff6ee9f8e8
T26130)
==26130==The signal is caused by a WRITE memory access.
==26130==Hint: address points to the zero page.
- #0 0x0000561ad346d587 in ip_deq() at slirp/src/ip_input.c:411:55
- #1 0x0000561ad346cffb in ip_reass() at slirp/src/ip_input.c:304:9
- #2 0x0000561ad346cb6f in ip_input() at slirp/src/ip_input.c:184:18
+ #0 0x0000561ad346d587 in ip_deq() at slirp/src/ip_input.c:411:55
+ #1 0x0000561ad346cffb in ip_reass() at slirp/src/ip_input.c:304:9
+ #2 0x0000561ad346cb6f in ip_input() at slirp/src/ip_input.c:184:18
I only had access to the last packet which isn't the culprit, I'm now
seeing how to log the network traffic of the guest to provide more
useful information.
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1837094
Title:
UndefinedBehaviorSanitizer crash around slirp::ip_reass()
Status in QEMU:
New
Bug description:
tag: v4.1.0-rc1
./configure --enable-sanitizers --extra-cflags=-O1
==26130==ERROR: UndefinedBehaviorSanitizer: SEGV on unknown address
0x000000000008 (pc 0x0000561ad346d588 bp 0x7fff6ee9f940 sp 0x7fff6ee9f8e8
T26130)
==26130==The signal is caused by a WRITE memory access.
==26130==Hint: address points to the zero page.
#0 0x0000561ad346d587 in ip_deq() at slirp/src/ip_input.c:411:55
#1 0x0000561ad346cffb in ip_reass() at slirp/src/ip_input.c:304:9
#2 0x0000561ad346cb6f in ip_input() at slirp/src/ip_input.c:184:18
I only had access to the last packet which isn't the culprit, I'm now
seeing how to log the network traffic of the guest to provide more
useful information.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1837094/+subscriptions