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| author | Hauke Mehrtens <hauke@hauke-m.de> | 2020-01-06 16:21:25 +0100 |
|---|---|---|
| committer | Hauke Mehrtens <hauke@hauke-m.de> | 2020-01-06 17:46:00 +0100 |
| commit | f58705b77eb20a3c39b2274168aba06233df2bc8 (patch) | |
| tree | 7ebd40a6a46d271364cf7de88f69cb08f86ac606 /tools/flex | |
| parent | 54711e528d03bdbfa4df94d982aac5e70b8f81e5 (diff) | |
| download | upstream-f58705b77eb20a3c39b2274168aba06233df2bc8.tar.gz upstream-f58705b77eb20a3c39b2274168aba06233df2bc8.tar.bz2 upstream-f58705b77eb20a3c39b2274168aba06233df2bc8.zip | |
dnsmasq: Fix potential dnsmasq crash with TCP
This is a backport from the dnsmasq master which should fix a bug which
could cause a crash in dnsmasq.
I saw the following crashes in my log:
[522413.117215] do_page_fault(): sending SIGSEGV to dnsmasq for invalid read access from 2a001450
[522413.124464] epc = 004197f1 in dnsmasq[400000+23000]
[522413.129459] ra = 004197ef in dnsmasq[400000+23000]
This is happening in blockdata_write() when block->next is
dereferenced, but I am not sure if this is related to this problem or if
this is a different problem. I am unable to reproduce this problem.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 414d0541381d432e69190f394dfe2a6e8122d6bb)
Diffstat (limited to 'tools/flex')
0 files changed, 0 insertions, 0 deletions