Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP Jan Schunk reports that his small NFS servers suffer from memory exhaustion after just a few days. A bisect shows that commit e18e157bb5c8 ("SUNRPC: Send RPC message on TCP with a single sock_sendmsg() call") is the first bad commit. That commit assumed that sock_sendmsg() releases all the pages in the underlying bio_vec array, but the reality is that it doesn't. svc_xprt_release() releases the rqst's response pages, but the record marker page fragment isn't one of those, so it is never released. This is a narrow fix that can be applied to stable kernels. A more extensive fix is in the works.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4 before 1ba1291172f935e6b6fe703161a948f3347400b8; affected e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4 before a2ebedf7bcd17a1194a0a18122c885eb578ee882; affected e18e157bb5c8c1cd8a9ba25acfdcf4f3035836f4 before 05258a0a69b3c5d2c003f818702c0a52b6fea861 |
| Linux / Linux | affected 6.6; unaffected 0 before 6.6; unaffected 6.6.26 through 6.6.*; unaffected 6.8.5 through 6.8.*; unaffected 6.9 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/1ba1291172f935e6b6fe703161a948f3347400b8
- https://git.kernel.org/stable/c/a2ebedf7bcd17a1194a0a18122c885eb578ee882
- https://git.kernel.org/stable/c/05258a0a69b3c5d2c003f818702c0a52b6fea861
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.