CVE-2021-46953
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
In the Linux kernel, the following vulnerability has been resolved: ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure When failing the driver probe because of invalid firmware properties, the GTDT driver unmaps the interrupt that it mapped earlier. However, it never checks whether the mapping of the interrupt actially succeeded. Even more, should the firmware report an illegal interrupt number that overlaps with the GIC SGI range, this can result in an IPI being unmapped, and subsequent fireworks (as reported by Dann Frazier). Rework the driver to have a slightly saner behaviour and actually check whether the interrupt has been mapped before unmapping things.
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) |
|---|---|---|---|---|---|
| ca9ae5ec4ef0ed13833b03297ab319676965492c | affected | git | c3385a9122f8db15b453e07bfc88117fce7f3724 | Unavailable | None listed |
| ca9ae5ec4ef0ed13833b03297ab319676965492c | affected | git | 7b2162db1498c71962a4bb2f776fa4e76d4d305b | Unavailable | None listed |
| ca9ae5ec4ef0ed13833b03297ab319676965492c | affected | git | 504632a3577a049dd9bb7aabae5b4476f9c586b4 | Unavailable | None listed |
| ca9ae5ec4ef0ed13833b03297ab319676965492c | affected | git | e0f2d86481eaa83df33b0793f75212919db7a19d | Unavailable | None listed |
| ca9ae5ec4ef0ed13833b03297ab319676965492c | affected | git | 42e69521ee1fa5abf21f478d147d06bbfe6bf6a8 | Unavailable | None listed |
| ca9ae5ec4ef0ed13833b03297ab319676965492c | affected | git | 596e079c362ac17ed02aa1b99fdc444d62072a01 | Unavailable | None listed |
| ca9ae5ec4ef0ed13833b03297ab319676965492c | affected | git | 1ecd5b129252249b9bc03d7645a7bda512747277 | 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) |
|---|---|---|---|---|---|
| 4.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.12 | Unavailable | None listed |
| 4.14.233 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.191 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.118 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.36 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.11.20 | unaffected | semver | Unavailable | 5.11.* | None listed |
| 5.12.3 | unaffected | semver | Unavailable | 5.12.* | None listed |
| 5.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |