Hauke Mehrtens f58705b77e 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 414d054138)
2020-01-06 17:46:00 +01:00
2020-01-04 23:04:24 +01:00
2019-11-07 19:42:42 +01:00
2018-07-08 12:05:16 +01:00
2019-01-22 13:29:46 +01:00

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