CVE-2021-47567
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)
powerpc/32: Fix hardlockup on vmap stack overflow
In the Linux kernel, the following vulnerability has been resolved: powerpc/32: Fix hardlockup on vmap stack overflow Since the commit c118c7303ad5 ("powerpc/32: Fix vmap stack - Do not activate MMU before reading task struct") a vmap stack overflow results in a hard lockup. This is because emergency_ctx is still addressed with its virtual address allthough data MMU is not active anymore at that time. Fix it by using a physical address instead.
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) |
|---|---|---|---|---|---|
| c118c7303ad528be8ff2aea8cd1ee15452c763f0 | affected | git | dfe906da9a1abebdebe8b15bb3e66a2578f6c4c7 | Unavailable | None listed |
| c118c7303ad528be8ff2aea8cd1ee15452c763f0 | affected | git | c4e3ff8b8b1d54f0c755670174c453b06e17114b | Unavailable | None listed |
| c118c7303ad528be8ff2aea8cd1ee15452c763f0 | affected | git | 5bb60ea611db1e04814426ed4bd1c95d1487678e | Unavailable | None listed |
| 3b234b4a6651ed6bdca94553aa0038fc7ded9271 | affected | git | Unavailable | Unavailable | None listed |
| 5.9.5 | affected | semver | 5.10 | 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) |
|---|---|---|---|---|---|
| 5.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.10 | Unavailable | None listed |
| 5.10.83 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.6 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |