CVE-2023-54269
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)
SUNRPC: double free xprt_ctxt while still in use
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: double free xprt_ctxt while still in use When an RPC request is deferred, the rq_xprt_ctxt pointer is moved out of the svc_rqst into the svc_deferred_req. When the deferred request is revisited, the pointer is copied into the new svc_rqst - and also remains in the svc_deferred_req. In the (rare?) case that the request is deferred a second time, the old svc_deferred_req is reused - it still has all the correct content. However in that case the rq_xprt_ctxt pointer is NOT cleared so that when xpo_release_xprt is called, the ctxt is freed (UDP) or possible added to a free list (RDMA). When the deferred request is revisited for a second time, it will reference this ctxt which may be invalid, and the free the object a second time which is likely to oops. So change svc_defer() to *always* clear rq_xprt_ctxt, and assert that the value is now stored in the svc_deferred_req.
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) |
|---|---|---|---|---|---|
| f5e13d700a4d40ccde3d36e383f9247dcb3c1d2d | affected | git | 7851771789e87108a92697194105ef0c9307dc5e | Unavailable | None listed |
| 773f91b2cf3f52df0d7508fdbf60f37567cdaee4 | affected | git | fd86534872f445f54dc01e7db001e25eadf063a8 | Unavailable | None listed |
| 773f91b2cf3f52df0d7508fdbf60f37567cdaee4 | affected | git | e0c648627322a4c7e018e5c7f837c3c03e297dbb | Unavailable | None listed |
| 773f91b2cf3f52df0d7508fdbf60f37567cdaee4 | affected | git | eb8d3a2c809abd73ab0a060fe971d6b9019aa3c1 | Unavailable | None listed |
| 11fab500f86403b2ebf6795feeade6e10302e448 | affected | git | Unavailable | Unavailable | None listed |
| 5.15.35 | affected | semver | 5.15.113 | Unavailable | None listed |
| 5.17.4 | affected | semver | 5.18 | 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) |
|---|---|---|---|---|---|
| 5.18 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.18 | Unavailable | None listed |
| 5.15.113 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.30 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.3.4 | unaffected | semver | Unavailable | 6.3.* | None listed |
| 6.4 | unaffected | original_commit_for_fix | Unavailable | * | None listed |