CVE-2025-23155
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: stmmac: Fix accessing freed irq affinity_hint
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Fix accessing freed irq affinity_hint In stmmac_request_irq_multi_msi(), a pointer to the stack variable cpu_mask is passed to irq_set_affinity_hint(). This value is stored in irq_desc->affinity_hint, but once stmmac_request_irq_multi_msi() returns, the pointer becomes dangling. The affinity_hint is exposed via procfs with S_IRUGO permissions, allowing any unprivileged process to read it. Accessing this stale pointer can lead to: - a kernel oops or panic if the referenced memory has been released and unmapped, or - leakage of kernel data into userspace if the memory is re-used for other purposes. All platforms that use stmmac with PCI MSI (Intel, Loongson, etc) are affected.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8deec94c6040bb4a767f6e9456a0a44c7f2e713e | affected | git | 2fbf67ddb8a0d0efc00d2df496a9843ec318d48b | Unavailable | None listed |
| 8deec94c6040bb4a767f6e9456a0a44c7f2e713e | affected | git | 960dab23f6d405740c537d095f90a4ee9ddd9285 | Unavailable | None listed |
| 8deec94c6040bb4a767f6e9456a0a44c7f2e713e | affected | git | 442312c2a90d60c7a5197246583fa91d9e579985 | Unavailable | None listed |
| 8deec94c6040bb4a767f6e9456a0a44c7f2e713e | affected | git | e148266e104fce396ad624079a6812ac3a9982ef | Unavailable | None listed |
| 8deec94c6040bb4a767f6e9456a0a44c7f2e713e | affected | git | 9e51a6a44e2c4de780a26e8fe110d708e806a8cd | Unavailable | None listed |
| 8deec94c6040bb4a767f6e9456a0a44c7f2e713e | affected | git | c60d101a226f18e9a8f01bb4c6ca2b47dfcb15ef | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.13 | Unavailable | None listed |
| 6.1.164 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.117 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.36 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13.12 | unaffected | semver | Unavailable | 6.13.* | None listed |
| 6.14.3 | unaffected | semver | Unavailable | 6.14.* | None listed |
| 6.15 | unaffected | original_commit_for_fix | Unavailable | * | None listed |