CVE-2025-21694
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)
fs/proc: fix softlockup in __read_vmcore (part 2)
In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix softlockup in __read_vmcore (part 2) Since commit 5cbcb62dddf5 ("fs/proc: fix softlockup in __read_vmcore") the number of softlockups in __read_vmcore at kdump time have gone down, but they still happen sometimes. In a memory constrained environment like the kdump image, a softlockup is not just a harmless message, but it can interfere with things like RCU freeing memory, causing the crashdump to get stuck. The second loop in __read_vmcore has a lot more opportunities for natural sleep points, like scheduling out while waiting for a data write to happen, but apparently that is not always enough. Add a cond_resched() to the second loop in __read_vmcore to (hopefully) get rid of the softlockups.
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) |
|---|---|---|---|---|---|
| 803d5a33d5ffdc2d86dcc0cfa01655a330612cdb | affected | git | 84c4ed15626574c9ac6c1039ba9c137a77bcc7f2 | Unavailable | None listed |
| 70c1835e776c8447c1aca87ddb38cfe764fe756a | affected | git | 80da29deb88a3a907441fc35bb7bac309f31e713 | Unavailable | None listed |
| e1b160a50c756e0efbea290b9bf5117cb80e8c4b | affected | git | 649b266606bc413407ce315f710c8ce8a88ee30a | Unavailable | None listed |
| a373ad833a6bfe4bc6cedcf7e56a99cc6fd9a193 | affected | git | 65c367bd9d4f43513c7f837df5753bea9561b836 | Unavailable | None listed |
| 518fbd644dabb6aedbdd4939c6c9cc1bf651459f | affected | git | a5a2ee8144c3897d37403a69118c3e3dc5713958 | Unavailable | None listed |
| 5cbcb62dddf5346077feb82b7b0c9254222d3445 | affected | git | 80828540dad0757b6337c6561d49c81038f38d87 | Unavailable | None listed |
| 5cbcb62dddf5346077feb82b7b0c9254222d3445 | affected | git | cbc5dde0a461240046e8a41c43d7c3b76d5db952 | Unavailable | None listed |
| 7bdf1d550ddfcd9ab797087421f77b7aceddc8a7 | affected | git | Unavailable | Unavailable | None listed |
| e8780e8a0e25dc4c3927f611ec8970d26c0c7369 | affected | git | Unavailable | Unavailable | None listed |
| 5.4.279 | affected | semver | 5.4.290 | Unavailable | None listed |
| 5.10.221 | affected | semver | 5.10.234 | Unavailable | None listed |
| 5.15.162 | affected | semver | 5.15.177 | Unavailable | None listed |
| 6.1.95 | affected | semver | 6.1.127 | Unavailable | None listed |
| 6.6.35 | affected | semver | 6.6.74 | Unavailable | None listed |
| 4.19.317 | affected | semver | 4.20 | Unavailable | None listed |
| 6.9.6 | affected | semver | 6.10 | 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) |
|---|---|---|---|---|---|
| 6.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.10 | Unavailable | None listed |
| 5.4.290 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.234 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.177 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.127 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.74 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.11 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |