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| author | Stanislav Fort <[email protected]> | 2025-08-31 14:56:23 +0000 |
|---|---|---|
| committer | Simon Wunderlich <[email protected]> | 2025-08-31 15:01:35 +0000 |
| commit | d77b6ff0ce35a6d0b0b7b9581bc3f76d041d4087 (patch) | |
| tree | 4870a24b7ab279ae6b356dc2f67a46052f9c638e /drivers/net/mctp/mctp-usb.c | |
| parent | Merge tag 'net-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff) | |
| download | kernel-d77b6ff0ce35a6d0b0b7b9581bc3f76d041d4087.tar.gz kernel-d77b6ff0ce35a6d0b0b7b9581bc3f76d041d4087.zip | |
batman-adv: fix OOB read/write in network-coding decode
batadv_nc_skb_decode_packet() trusts coded_len and checks only against
skb->len. XOR starts at sizeof(struct batadv_unicast_packet), reducing
payload headroom, and the source skb length is not verified, allowing an
out-of-bounds read and a small out-of-bounds write.
Validate that coded_len fits within the payload area of both destination
and source sk_buffs before XORing.
Fixes: 2df5278b0267 ("batman-adv: network coding - receive coded packets and decode them")
Cc: [email protected]
Reported-by: Stanislav Fort <[email protected]>
Signed-off-by: Stanislav Fort <[email protected]>
Signed-off-by: Sven Eckelmann <[email protected]>
Signed-off-by: Simon Wunderlich <[email protected]>
Diffstat (limited to 'drivers/net/mctp/mctp-usb.c')
0 files changed, 0 insertions, 0 deletions