CVE-2023-53199
wifi: ath9k: hif_usb: clean up skbs if ath9k_hif_usb_rx_stream() fails
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hif_usb: clean up skbs if ath9k_hif_usb_rx_stream() fails Syzkaller detected a memory leak of skbs in ath9k_hif_usb_rx_stream(). While processing skbs in ath9k_hif_usb_rx_stream(), the already allocated skbs in skb_pool are not freed if ath9k_hif_usb_rx_stream() fails. If we have an incorrect pkt_len or pkt_tag, the input skb is considered invalid and dropped. All the associated packets already in skb_pool should be dropped and freed. Added a comment describing this issue. The patch also makes remain_skb NULL after being processed so that it cannot be referenced after potential free. The initialization of hif_dev fields which are associated with remain_skb (rx_remain_len, rx_transfer_len and rx_pad_len) is moved after a new remain_skb is allocated. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Timeline
ID reserved
By Linux
Published
- 14 months later
· 14 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected 44b23b488d44e56d467764ecb661830e5b02b308 – < 3fc6401fafde11712a83089fa2cc874cfd10e2cd
- affected 44b23b488d44e56d467764ecb661830e5b02b308 – < cd8316767099920a5d41feed1afab0c482a43e9f
- affected 44b23b488d44e56d467764ecb661830e5b02b308 – < f26dd69f61eff2eedf5df2d199bdd23108309947
- affected 44b23b488d44e56d467764ecb661830e5b02b308 – < 61490d2710277e8a55009b7682456ae22f8087cf
- affected 44b23b488d44e56d467764ecb661830e5b02b308 – < 9acdec72787af1bc8ed92711b52118c8e3e638a2
- affected 44b23b488d44e56d467764ecb661830e5b02b308 – < c766e37fccd5a5c5059be7efcd9618bf8a2c17c3
- affected 44b23b488d44e56d467764ecb661830e5b02b308 – < 0af54343a76263a12dbae7fafb64eb47c4a6ad38
- affected 2.6.38
- unaffected < 2.6.38
- unaffected 4.19.276 – ≤ 4.19.*
- unaffected 5.4.235 – ≤ 5.4.*
- unaffected 5.10.173 – ≤ 5.10.*
- unaffected 5.15.99 – ≤ 5.15.*
- unaffected 6.1.16 – ≤ 6.1.*
- unaffected 6.2.3 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References (7)
- https://git.kernel.org/stable/c/3fc6401fafde11712a83089fa2cc874cfd10e2cd (opens in a new tab)
- https://git.kernel.org/stable/c/cd8316767099920a5d41feed1afab0c482a43e9f (opens in a new tab)
- https://git.kernel.org/stable/c/f26dd69f61eff2eedf5df2d199bdd23108309947 (opens in a new tab)
- https://git.kernel.org/stable/c/61490d2710277e8a55009b7682456ae22f8087cf (opens in a new tab)
- https://git.kernel.org/stable/c/9acdec72787af1bc8ed92711b52118c8e3e638a2 (opens in a new tab)
- https://git.kernel.org/stable/c/c766e37fccd5a5c5059be7efcd9618bf8a2c17c3 (opens in a new tab)
- https://git.kernel.org/stable/c/0af54343a76263a12dbae7fafb64eb47c4a6ad38 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-53199)Record last updated .