[ovs-build] Passed: openvswitch/ovs#8105 (branch-2.7 - d4f26c3)
Travis CI
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Mon Apr 15 19:31:37 UTC 2019
Build Update for openvswitch/ovs
-------------------------------------
Build: #8105
Status: Passed
Duration: 38 mins and 57 secs
Commit: d4f26c3 (branch-2.7)
Author: Andrea Righi
Message: datapath: fix flow actions reallocation
Upstream commit:
commit f28cd2af22a0c134e4aa1c64a70f70d815d473fb
Author: Andrea Righi <andrea.righi at canonical.com>
Date: Thu Mar 28 07:36:00 2019 +0100
openvswitch: fix flow actions reallocation
The flow action buffer can be resized if it's not big enough to contain
all the requested flow actions. However, this resize doesn't take into
account the new requested size, the buffer is only increased by a factor
of 2x. This might be not enough to contain the new data, causing a
buffer overflow, for example:
[ 42.044472] =============================================================================
[ 42.045608] BUG kmalloc-96 (Not tainted): Redzone overwritten
[ 42.046415] -----------------------------------------------------------------------------
[ 42.047715] Disabling lock debugging due to kernel taint
[ 42.047716] INFO: 0x8bf2c4a5-0x720c0928. First byte 0x0 instead of 0xcc
[ 42.048677] INFO: Slab 0xbc6d2040 objects=29 used=18 fp=0xdc07dec4 flags=0x2808101
[ 42.049743] INFO: Object 0xd53a3464 @offset=2528 fp=0xccdcdebb
[ 42.050747] Redzone 76f1b237: cc cc cc cc cc cc cc cc ........
[ 42.051839] Object d53a3464: 6b 6b 6b 6b 6b 6b 6b 6b 0c 00 00 00 6c 00 00 00 kkkkkkkk....l...
[ 42.053015] Object f49a30cc: 6c 00 0c 00 00 00 00 00 00 00 00 03 78 a3 15 f6 l...........x...
[ 42.054203] Object acfe4220: 20 00 02 00 ff ff ff ff 00 00 00 00 00 00 00 00 ...............
[ 42.055370] Object 21024e91: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 42.056541] Object 070e04c3: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 42.057797] Object 948a777a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[ 42.059061] Redzone 8bf2c4a5: 00 00 00 00 ....
[ 42.060189] Padding a681b46e: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ
Fix by making sure the new buffer is properly resized to contain all the
requested data.
BugLink: https://bugs.launchpad.net/bugs/1813244
Signed-off-by: Andrea Righi <andrea.righi at canonical.com>
Acked-by: Pravin B Shelar <pshelar at ovn.org>
Signed-off-by: David S. Miller <davem at davemloft.net>
Cc: Andrea Righi <andrea.righi at canonical.com>
Acked-by: William Tu <u9012063 at gmail.com>
Signed-off-by: Greg Rose <gvrose8192 at gmail.com>
Signed-off-by: Ben Pfaff <blp at ovn.org>
View the changeset: https://github.com/openvswitch/ovs/compare/371468b00184...d4f26c39eb1c
View the full build log and details: https://travis-ci.org/openvswitch/ovs/builds/520379049?utm_medium=notification&utm_source=email
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