CVE-2026-45879power: supply: bq25980: Fix use-after-free in power_supply_changed()
- 7.8HighCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: power: supply: bq25980: Fix use-after-free in power_supply_changed() Using the `devm_` variant for requesting IRQ _before_ the `devm_` variant for allocating/registering the `power_supply` handle, means that the `power_supply` handle will be deallocated/unregistered _before_ the interrupt handler (since `devm_` naturally deallocates in reverse allocation order). This means that during removal, there is a race condition where an interrupt can fire just _after_ the `power_supply` handle has been freed, *but* just _before_ the corresponding unregistration of the IRQ handler has run. This will lead to the IRQ handler calling `power_supply_changed()` with a freed `power_supply` handle. Which usually crashes the system or otherwise silently corrupts the memory... Note that there is a similar situation which can also happen during `probe()`; the possibility of an interrupt firing _before_ registering the `power_supply` handle. This would then lead to the nasty situation of using the `power_supply` handle *uninitialized* in `power_supply_changed()`. Fix this racy use-after-free by making sure the IRQ is requested _after_ the registration of the `power_supply` handle.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
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 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 94% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 5069185fc18e810715a91d80fcd075e03add600c – < 86f93dfb23f5bf4f285c4256a7e909d222f7de56
- affected 5069185fc18e810715a91d80fcd075e03add600c – < 16875e3b7bc9e59bfa0acaf1e43f275a6f42a30f
- affected 5069185fc18e810715a91d80fcd075e03add600c – < 0560a4b09c92e2ecaa883965cf6f9ca51c158ff9
- affected 5069185fc18e810715a91d80fcd075e03add600c – < 0de95d29d847c6217b7d5845e24a71a4aee7b359
- affected 5069185fc18e810715a91d80fcd075e03add600c – < 4aeaf03c17260415c2fdd55992f9ad4188d5455a
- affected 5069185fc18e810715a91d80fcd075e03add600c – < 03d1e4ee4e6aa6d2966e883e4ca0e5be73bf1b7c
- affected 5069185fc18e810715a91d80fcd075e03add600c – < abea607ff2f62f4c0a5fb29f7fbdaaab163276a4
- affected 5069185fc18e810715a91d80fcd075e03add600c – < 5f0b1cb41906e86b64bf69f5ededb83b0d757c27
- affected 5.10
- unaffected < 5.10
- unaffected 5.10.252 – ≤ 5.10.*
- unaffected 5.15.202 – ≤ 5.15.*
- unaffected 6.1.165 – ≤ 6.1.*
- unaffected 6.6.128 – ≤ 6.6.*
- unaffected 6.12.75 – ≤ 6.12.*
- unaffected 6.18.14 – ≤ 6.18.*
- unaffected 6.19.4 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/86f93dfb23f5bf4f285c4256a7e909d222f7de56 (opens in a new tab)
- https://git.kernel.org/stable/c/16875e3b7bc9e59bfa0acaf1e43f275a6f42a30f (opens in a new tab)
- https://git.kernel.org/stable/c/0560a4b09c92e2ecaa883965cf6f9ca51c158ff9 (opens in a new tab)
- https://git.kernel.org/stable/c/0de95d29d847c6217b7d5845e24a71a4aee7b359 (opens in a new tab)
- https://git.kernel.org/stable/c/4aeaf03c17260415c2fdd55992f9ad4188d5455a (opens in a new tab)
- https://git.kernel.org/stable/c/03d1e4ee4e6aa6d2966e883e4ca0e5be73bf1b7c (opens in a new tab)
- https://git.kernel.org/stable/c/abea607ff2f62f4c0a5fb29f7fbdaaab163276a4 (opens in a new tab)
- https://git.kernel.org/stable/c/5f0b1cb41906e86b64bf69f5ededb83b0d757c27 (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)
- EUVD EUVD-2026-32345 (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://cveledger.app/cve/CVE-2026-45879)Record last updated .