diff options
| author | Kenton Groombridge <concord@gentoo.org> | 2024-06-05 11:22:18 -0400 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-06-14 09:08:41 +0200 |
| commit | 2663d0462eb32ae7c9b035300ab6b1523886c718 (patch) | |
| tree | 5c62dc042a00537e865b6b89e8434b50b914efbe /net/unix/af_unix.c | |
| parent | 7d09e17c0415fe6d946044c7e70bce31cda952ec (diff) | |
wifi: mac80211: Avoid address calculations via out of bounds array indexing
req->n_channels must be set before req->channels[] can be used.
This patch fixes one of the issues encountered in [1].
[ 83.964255] UBSAN: array-index-out-of-bounds in net/mac80211/scan.c:364:4
[ 83.964258] index 0 is out of range for type 'struct ieee80211_channel *[]'
[...]
[ 83.964264] Call Trace:
[ 83.964267] <TASK>
[ 83.964269] dump_stack_lvl+0x3f/0xc0
[ 83.964274] __ubsan_handle_out_of_bounds+0xec/0x110
[ 83.964278] ieee80211_prep_hw_scan+0x2db/0x4b0
[ 83.964281] __ieee80211_start_scan+0x601/0x990
[ 83.964291] nl80211_trigger_scan+0x874/0x980
[ 83.964295] genl_family_rcv_msg_doit+0xe8/0x160
[ 83.964298] genl_rcv_msg+0x240/0x270
[...]
[1] https://bugzilla.kernel.org/show_bug.cgi?id=218810
Co-authored-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Kenton Groombridge <concord@gentoo.org>
Link: https://msgid.link/20240605152218.236061-1-concord@gentoo.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions