CVE-2026-46252In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix locking in regulator_resolve_supply() error path If late enabling of a supply regulator fails in regulator_res…
Updated under an hour ago ()
Does this affect you?
It affects linux_kernel. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix locking in regulator_resolve_supply() error path If late enabling of a supply regulator fails in regulator_resolve_supply(), the code currently triggers a lockdep warning: WARNING: drivers/regulator/core.c:2649 at _regulator_put+0x80/0xa0, CPU#6: kworker/u32:4/596 ... Call trace: _regulator_put+0x80/0xa0 (P) regulator_resolve_supply+0x7cc/0xbe0 regulator_register_resolve_supply+0x28/0xb8 as the regulator_list_mutex must be held when calling _regulator_put(). To solve this, simply switch to using regulator_put(). While at it, we should also make sure that no concurrent access happens to our rdev while we clear out the supply pointer. Add appropriate locking to ensure that. While the code in question will be removed altogether in a follow-up commit, I believe it is still beneficial to have this corrected before removal for future reference.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-667
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jul 22, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 4.2.1 before 6.19.4; 4.2; 4.2; 4.2; 4.2; 4.2; 4.2 | NVD |
References
- https://git.kernel.org/stable/c/3b7fffd7a8984a1c009f668765ee7631fd6b87c8
- https://git.kernel.org/stable/c/497330b203d2c59c5ff3fa4c34d14494d7203bc3patch
- https://git.kernel.org/stable/c/60747114fd2a38739130b715e7b2d40ce848f0be
- https://git.kernel.org/stable/c/a8a2eab1166bc33ee38ca371cff425bdb5681e47
- https://git.kernel.org/stable/c/bde74af8d4466213007bdd42cc85fa72c861dea7
- https://git.kernel.org/stable/c/c66e0db0f37290b53c57994f998bb55590364fd0patch
- https://git.kernel.org/stable/c/c84860dac7af7dc3c3e3c9ae86d65e222c2f3b0c
- https://git.kernel.org/stable/c/e77357dc2293283fc08a485b1e2e571d91d02622
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.