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| author | Davide Caratti <[email protected]> | 2020-12-03 09:58:21 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2020-12-03 19:13:21 +0000 |
| commit | 13de4ed9e3a9ccbe54d05f7d5c773f69ecaf6c64 (patch) | |
| tree | 3c31c25a52609be88914c1b5f78aa8d4c06f31f4 /net/tipc | |
| parent | Merge tag 'wireless-drivers-2020-12-03' of git://git.kernel.org/pub/scm/linux... (diff) | |
| download | kernel-13de4ed9e3a9ccbe54d05f7d5c773f69ecaf6c64.tar.gz kernel-13de4ed9e3a9ccbe54d05f7d5c773f69ecaf6c64.zip | |
net: skbuff: ensure LSE is pullable before decrementing the MPLS ttl
skb_mpls_dec_ttl() reads the LSE without ensuring that it is contained in
the skb "linear" area. Fix this calling pskb_may_pull() before reading the
current ttl.
Found by code inspection.
Fixes: 2a2ea50870ba ("net: sched: add mpls manipulation actions to TC")
Reported-by: Marcelo Ricardo Leitner <[email protected]>
Signed-off-by: Davide Caratti <[email protected]>
Link: https://lore.kernel.org/r/53659f28be8bc336c113b5254dc637cc76bbae91.1606987074.git.dcaratti@redhat.com
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'net/tipc')
0 files changed, 0 insertions, 0 deletions