https://github.com/torvalds/linux
Revision 72fb96e7bdbbdd4421b0726992496531060f3636 authored by Eric Dumazet on 10 February 2017, 00:15:52 UTC, committed by David S. Miller on 10 February 2017, 20:57:34 UTC
udp_ioctl(), as its name suggests, is used by UDP protocols,
but is also used by L2TP :(
L2TP should use its own handler, because it really does not
look the same.
SIOCINQ for instance should not assume UDP checksum or headers.
Thanks to Andrey and syzkaller team for providing the report
and a nice reproducer.
While crashes only happen on recent kernels (after commit
7c13f97ffde6 ("udp: do fwd memory scheduling on dequeue")), this
probably needs to be backported to older kernels.
Fixes: 7c13f97ffde6 ("udp: do fwd memory scheduling on dequeue")
Fixes: 85584672012e ("udp: Fix udp_poll() and ioctl()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- v2.6.19-rc4
- v2.6.19-rc3
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- v2.6.19-rc1
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- v2.6.18
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- v2.6.17-rc2
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- v2.6.17
- v2.6.16-rc6
- v2.6.16-rc5
- v2.6.16-rc4
- v2.6.16-rc3
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- v2.6.15-rc7
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- v2.6.12-rc6
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- v2.6.12-rc4
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- v2.6.12
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History 
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Tip revision: 72fb96e7bdbbdd4421b0726992496531060f3636 authored by Eric Dumazet on 10 February 2017, 00:15:52 UTC
l2tp: do not use udp_ioctl()
l2tp: do not use udp_ioctl()
Tip revision: 72fb96e
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .cocciconfig | -rw-r--r-- | 59 bytes |
| .get_maintainer.ignore | -rw-r--r-- | 31 bytes |
| .gitattributes | -rw-r--r-- | 30 bytes |
| .gitignore | -rw-r--r-- | 1.3 KB |
| .mailmap | -rw-r--r-- | 7.7 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 96.0 KB |
| Kbuild | -rw-r--r-- | 2.8 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 383.0 KB |
| Makefile | -rw-r--r-- | 57.7 KB |
| README | -rw-r--r-- | 722 bytes |
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