CVE-2025-39715
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)
parisc: Revise gateway LWS calls to probe user read access
In the Linux kernel, the following vulnerability has been resolved: parisc: Revise gateway LWS calls to probe user read access We use load and stbys,e instructions to trigger memory reference interruptions without writing to memory. Because of the way read access support is implemented, read access interruptions are only triggered at privilege levels 2 and 3. The kernel and gateway page execute at privilege level 0, so this code never triggers a read access interruption. Thus, it is currently possible for user code to execute a LWS compare and swap operation at an address that is read protected at privilege level 3 (PRIV_USER). Fix this by probing read access rights at privilege level 3 and branching to lws_fault if access isn't allowed.
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) |
|---|---|---|---|---|---|
| d0585d742ff2d82accd26c661c60a6d260429c4a | affected | git | e8b496c52aa0c6572d88db7cab85aeea6f9c194d | Unavailable | None listed |
| d0585d742ff2d82accd26c661c60a6d260429c4a | affected | git | 8bccf47adbf658293528e86960e6d6f736b1c9f7 | Unavailable | None listed |
| d0585d742ff2d82accd26c661c60a6d260429c4a | affected | git | bc0a24c24ceebabb5ba65900e332233d79e625e6 | Unavailable | None listed |
| d0585d742ff2d82accd26c661c60a6d260429c4a | affected | git | 9b6af875baba9c4679b55f4561e201485451305f | Unavailable | None listed |
| d0585d742ff2d82accd26c661c60a6d260429c4a | affected | git | f6334f4ae9a4e962ba74b026e1d965dfdf8cbef8 | 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) |
|---|---|---|---|---|---|
| 5.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.17 | Unavailable | None listed |
| 6.1.149 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.103 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.44 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.16.4 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |