CVE-2023-52832
wifi: mac80211: don't return unset power in ieee80211_get_tx_power()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't return unset power in ieee80211_get_tx_power() We can get a UBSAN warning if ieee80211_get_tx_power() returns the INT_MIN value mac80211 internally uses for "unset power level". UBSAN: signed-integer-overflow in net/wireless/nl80211.c:3816:5 -2147483648 * 100 cannot be represented in type 'int' CPU: 0 PID: 20433 Comm: insmod Tainted: G WC OE Call Trace: dump_stack+0x74/0x92 ubsan_epilogue+0x9/0x50 handle_overflow+0x8d/0xd0 __ubsan_handle_mul_overflow+0xe/0x10 nl80211_send_iface+0x688/0x6b0 [cfg80211] [...] cfg80211_register_wdev+0x78/0xb0 [cfg80211] cfg80211_netdev_notifier_call+0x200/0x620 [cfg80211] [...] ieee80211_if_add+0x60e/0x8f0 [mac80211] ieee80211_register_hw+0xda5/0x1170 [mac80211] In this case, simply return an error instead, to indicate that no data is available.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| NVDNVD · Modified | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.3% · top 30% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.1.
Weakness
Affected products
- affected db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – < 717de20abdcd1d4993fa450e28b8086a352620ea
- affected db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – < 21a0f310a9f3bfd2b4cf4f382430e638607db846
- affected db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – < 2be24c47ac19bf639c48c082486c08888bd603c6
- affected db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – < adc2474d823fe81d8da759207f4f1d3691aa775a
- affected db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – < 5a94cffe90e20e8fade0b9abd4370bd671fe87c7
- affected db6d9e9e8b48b7ab68c61553eb5fa68534dd0fde – < e160ab85166e77347d0cbe5149045cb25e83937f
- affected 5.7
- unaffected < 5.7
- unaffected 5.10.202 – ≤ 5.10.*
- unaffected 5.15.140 – ≤ 5.15.*
- unaffected 6.1.64 – ≤ 6.1.*
- unaffected 6.5.13 – ≤ 6.5.*
- unaffected 6.6.3 – ≤ 6.6.*
- unaffected 6.7 – ≤ *
References (9)
- https://git.kernel.org/stable/c/717de20abdcd1d4993fa450e28b8086a352620ea (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/21a0f310a9f3bfd2b4cf4f382430e638607db846 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/2be24c47ac19bf639c48c082486c08888bd603c6 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/adc2474d823fe81d8da759207f4f1d3691aa775a (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/5a94cffe90e20e8fade0b9abd4370bd671fe87c7 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/e160ab85166e77347d0cbe5149045cb25e83937f (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/1571120c44dbe5757aee1612c5b6097cdc42710f (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/298e767362cade639b7121ecb3cc5345b6529f62 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/efeae5f4972f75d50002bc50eb112ab9e7069b18 (opens in a new tab)x_transferred
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-2023-52832)Record last updated .