CVE-2023-52832
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-52832
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52832.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-52832
- Downstream
- Related
- Published
- 2024-05-21T16:15:20Z
- Modified
- 2025-08-09T20:01:25Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: don't return unset power in ieee80211gettx_power()
We can get a UBSAN warning if ieee80211gettxpower() returns the INTMIN 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: dumpstack+0x74/0x92 ubsanepilogue+0x9/0x50 handleoverflow+0x8d/0xd0 _ubsanhandlemuloverflow+0xe/0x10 nl80211sendiface+0x688/0x6b0 [cfg80211] [...] cfg80211registerwdev+0x78/0xb0 [cfg80211] cfg80211netdevnotifiercall+0x200/0x620 [cfg80211] [...] ieee80211ifadd+0x60e/0x8f0 [mac80211] ieee80211registerhw+0xda5/0x1170 [mac80211]
In this case, simply return an error instead, to indicate that no data is available.
- References
-
- https://git.kernel.org/stable/c/1571120c44dbe5757aee1612c5b6097cdc42710f
- https://git.kernel.org/stable/c/21a0f310a9f3bfd2b4cf4f382430e638607db846
- https://git.kernel.org/stable/c/298e767362cade639b7121ecb3cc5345b6529f62
- https://git.kernel.org/stable/c/2be24c47ac19bf639c48c082486c08888bd603c6
- https://git.kernel.org/stable/c/5a94cffe90e20e8fade0b9abd4370bd671fe87c7
- https://git.kernel.org/stable/c/717de20abdcd1d4993fa450e28b8086a352620ea
- https://git.kernel.org/stable/c/adc2474d823fe81d8da759207f4f1d3691aa775a
- https://git.kernel.org/stable/c/e160ab85166e77347d0cbe5149045cb25e83937f
- https://git.kernel.org/stable/c/efeae5f4972f75d50002bc50eb112ab9e7069b18