diff options
| author | Dmitry Antipov <dmantipov@yandex.ru> | 2024-02-14 11:22:24 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-02-15 07:34:52 -0800 |
| commit | 4e45170d9acc2d5ae8f545bf3f2f67504a361338 (patch) | |
| tree | 4d210c3c697c075f5a7cc30c40efd4beed7d6021 /.editorconfig | |
| parent | e5b2e810daf9f2d87fe132eb4d2a85fb08a0db98 (diff) | |
net: sctp: fix skb leak in sctp_inq_free()
In case of GSO, 'chunk->skb' pointer may point to an entry from
fraglist created in 'sctp_packet_gso_append()'. To avoid freeing
random fraglist entry (and so undefined behavior and/or memory
leak), introduce 'sctp_inq_chunk_free()' helper to ensure that
'chunk->skb' is set to 'chunk->head_skb' (i.e. fraglist head)
before calling 'sctp_chunk_free()', and use the aforementioned
helper in 'sctp_inq_pop()' as well.
Reported-by: syzbot+8bb053b5d63595ab47db@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?id=0d8351bbe54fd04a492c2daab0164138db008042
Fixes: 90017accff61 ("sctp: Add GSO support")
Suggested-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/20240214082224.10168-1-dmantipov@yandex.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to '.editorconfig')
0 files changed, 0 insertions, 0 deletions