regmap: Fix race condition in hwspinlock irqsave routine
In the Linux kernel, the following vulnerability has been resolved: regmap: Fix race condition in hwspinlock irqsave routine Previously, the address of the shared member '&map->spinlock_flags' was passed directly to 'hwspin_lock_timeout_irqsave'. This creates a race condition where multiple contexts contending for the lock could overwrite the shared flags variable, potentially corrupting the state for the current lock owner. Fix this by using a local stack variable 'flags' to store the IRQ state temporarily.
CVE-2026-23071
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-23071
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "8698b9364710e7bac84b3af07dd410e39c8c2e08",
"lessThan": "e1a7072bc4f958c9e852dc7e57e39f12b0bb44b5",
"versionType": "git"
},
{
"status": "affected",
"version": "8698b9364710e7bac84b3af07dd410e39c8c2e08",
"lessThan": "766e243ae8c8b27087a4cc605752c0d5ee2daeab",
"versionType": "git"
},
{
"status": "affected",
"version": "8698b9364710e7bac84b3af07dd410e39c8c2e08",
"lessThan": "f1e2fe26a51eca95b41420af76d22c2e613efd5e",
"versionType": "git"
},
{
"status": "affected",
"version": "8698b9364710e7bac84b3af07dd410e39c8c2e08",
"lessThan": "24f31be6ad70537fd7706269d99c92cade465a09",
"versionType": "git"
},
{
"status": "affected",
"version": "8698b9364710e7bac84b3af07dd410e39c8c2e08",
"lessThan": "4aab0ca0a0f7760e33edcb4e47576064d05128f5",
"versionType": "git"
},
{
"status": "affected",
"version": "8698b9364710e7bac84b3af07dd410e39c8c2e08",
"lessThan": "c2d2cf710dc3ee1a69e00b4ed8de607a92a07889",
"versionType": "git"
},
{
"status": "affected",
"version": "8698b9364710e7bac84b3af07dd410e39c8c2e08",
"lessThan": "4b58aac989c1e3fafb1c68a733811859df388250",
"versionType": "git"
}
],
"programFiles": [
"drivers/base/regmap/regmap.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.249",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.199",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.162",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.122",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.68",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.8",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/base/regmap/regmap.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-23071
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #39739 · Revision 1
- Added to Heist Feed
- Publisher date