CVE-2023-53360
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
NFSv4.2: Rework scratch handling for READ_PLUS (again)
In the Linux kernel, the following vulnerability has been resolved: NFSv4.2: Rework scratch handling for READ_PLUS (again) I found that the read code might send multiple requests using the same nfs_pgio_header, but nfs4_proc_read_setup() is only called once. This is how we ended up occasionally double-freeing the scratch buffer, but also means we set a NULL pointer but non-zero length to the xdr scratch buffer. This results in an oops the first time decoding needs to copy something to scratch, which frequently happens when decoding READ_PLUS hole segments. I fix this by moving scratch handling into the pageio read code. I provide a function to allocate scratch space for decoding read replies, and free the scratch buffer when the nfs_pgio_header is freed.
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) |
|---|---|---|---|---|---|
| 886959f425b6a936a30b82a297ae3aecb3b8230f | affected | git | adac9f0ddd2b291c7ce41f549fdb27a13616cff5 | Unavailable | None listed |
| fbd2a05f29a95d5b42b294bf47e55a711424965b | affected | git | a2f4cb206bd94b3f4a7bb05fcdce9525283b5681 | Unavailable | None listed |
| fbd2a05f29a95d5b42b294bf47e55a711424965b | affected | git | ae5d5672f1db711e91db6f52df5cb16ecd8f5692 | Unavailable | None listed |
| fbd2a05f29a95d5b42b294bf47e55a711424965b | affected | git | 303a78052091c81e9003915c521fdca1c7e117af | 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) |
|---|---|---|---|---|---|
| 6.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.4 | Unavailable | None listed |
| 6.4.16 | unaffected | semver | Unavailable | 6.4.* | None listed |
| 6.5.3 | unaffected | semver | Unavailable | 6.5.* | None listed |
| 6.6 | unaffected | original_commit_for_fix | Unavailable | * | None listed |