diff options
| author | Vincenzo Maffione <vmaffione@FreeBSD.org> | 2022-03-16 06:58:50 +0000 |
|---|---|---|
| committer | Ed Maste <emaste@FreeBSD.org> | 2022-04-06 03:24:05 +0000 |
| commit | 7c55c52696d2aec39441802d687badc8b012432e (patch) | |
| tree | d9e347d4d05c0359f094b2ff8f0375e19157dc93 /sys/dev/netmap/netmap_offloadings.c | |
| parent | 9d354cf6e141a55ad1ef0cb85316f39013d594d2 (diff) | |
netmap: Fix TOCTOU vulnerability in nmreq_copyin
The total size of the user-provided nmreq was first computed and then
trusted during the copyin. This might lead to kernel memory corruption
and escape from jails/containers.
Reported by: Lucas Leong (@_wmliang_) of Trend Micro Zero Day Initiative
Security: CVE-2022-23084
MFC after: 3 days
(cherry picked from commit 393729916564ed13f966e09129a24e6931898d12)
(cherry picked from commit 9f600a260a738d87015b2e9722b7b4f228cbd47d)
Approved by: so, re (implicit)
Diffstat (limited to 'sys/dev/netmap/netmap_offloadings.c')
0 files changed, 0 insertions, 0 deletions