wifi: ath5k: do not access array OOB
Summary
| CVE | CVE-2026-46307 |
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| State | PUBLISHED |
|---|
| Assigner | Linux |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2026-06-08 17:16:49 UTC |
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| Updated | 2026-06-08 17:16:49 UTC |
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| Description | In the Linux kernel, the following vulnerability has been resolved:
wifi: ath5k: do not access array OOB
Vincent reports:
> The ath5k driver seems to do an array-index-out-of-bounds access as
> shown by the UBSAN kernel message:
> UBSAN: array-index-out-of-bounds in drivers/net/wireless/ath/ath5k/base.c:1741:20
> index 4 is out of range for type 'ieee80211_tx_rate [4]'
> ...
> Call Trace:
> <TASK>
> dump_stack_lvl+0x5d/0x80
> ubsan_epilogue+0x5/0x2b
> __ubsan_handle_out_of_bounds.cold+0x46/0x4b
> ath5k_tasklet_tx+0x4e0/0x560 [ath5k]
> tasklet_action_common+0xb5/0x1c0
It is real. 'ts->ts_final_idx' can be 3 on 5212, so:
info->status.rates[ts->ts_final_idx + 1].idx = -1;
with the array defined as:
struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES];
while the size is:
#define IEEE80211_TX_MAX_RATES 4
is indeed bogus.
Set this 'idx = -1' sentinel only if the array index is less than the
array size. As mac80211 will not look at rates beyond the size
(IEEE80211_TX_MAX_RATES).
Note: The effect of the OOB write is negligible. It just overwrites the
next member of info->status, i.e. ack_signal. |
|---|
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|
| CNA |
Linux |
Linux |
affected 6d7b97b23e114c8fbb825e6721164d228c1af3fc ecb1c163166759dec004c1fdb9709b8a5992fc8e git |
Not specified |
| CNA |
Linux |
Linux |
affected 6d7b97b23e114c8fbb825e6721164d228c1af3fc 9dd6aae4bc7bfa11088d928670a3315eae542769 git |
Not specified |
| CNA |
Linux |
Linux |
affected 6d7b97b23e114c8fbb825e6721164d228c1af3fc 744c19e266b0d2628c5951439195dcef27eadacf git |
Not specified |
| CNA |
Linux |
Linux |
affected 6d7b97b23e114c8fbb825e6721164d228c1af3fc 83226c71af53fb9b3cad40cb9a9a79f36d68c020 git |
Not specified |
| CNA |
Linux |
Linux |
affected 6d7b97b23e114c8fbb825e6721164d228c1af3fc d6869537013b1f21b292342752d97868b79b5934 git |
Not specified |
| CNA |
Linux |
Linux |
affected 6d7b97b23e114c8fbb825e6721164d228c1af3fc e9f1081bc775146156def0dbc821b92f35d56afb git |
Not specified |
| CNA |
Linux |
Linux |
affected 6d7b97b23e114c8fbb825e6721164d228c1af3fc 568173ad9bd0b46cc6cd937dea8791e9b5eefa57 git |
Not specified |
| CNA |
Linux |
Linux |
affected 6d7b97b23e114c8fbb825e6721164d228c1af3fc d748603f12baff112caa3ab7d39f50100f010dbd git |
Not specified |
| CNA |
Linux |
Linux |
affected 3.0 |
Not specified |
| CNA |
Linux |
Linux |
unaffected 3.0 semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 5.10.258 5.10.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 5.15.209 5.15.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.1.175 6.1.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.6.140 6.6.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.12.88 6.12.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.18.30 6.18.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.0.7 7.0.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.1-rc3 * original_commit_for_fix |
Not specified |
References
| Reference | Source | Link | Tags |
|---|
| git.kernel.org/stable/c/568173ad9bd0b46cc6cd937dea8791e9b5eefa57 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/d6869537013b1f21b292342752d97868b79b5934 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/ecb1c163166759dec004c1fdb9709b8a5992fc8e |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/744c19e266b0d2628c5951439195dcef27eadacf |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/83226c71af53fb9b3cad40cb9a9a79f36d68c020 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/9dd6aae4bc7bfa11088d928670a3315eae542769 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/d748603f12baff112caa3ab7d39f50100f010dbd |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/e9f1081bc775146156def0dbc821b92f35d56afb |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.
