Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: rds: sysctl: rds_tcp_{rcv,snd}buf: avoid using current->nsproxy As mentioned in a previous commit of this series, using the 'net' structure via 'current' is not recommended for different reasons: - Inconsistency: getting info from the reader's/writer's netns vs only from the opener's netns. - current->nsproxy can be NULL in some cases, resulting in an 'Oops' (null-ptr-deref), e.g. when the current task is exiting, as spotted by syzbot [1] using acct(2). The per-netns structure can be obtained from the table->data using container_of(), then the 'net' one can be retrieved from the listen socket (if available).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c6a58ffed53612be86b758df1cdb0b0f4305e9cb before 33b3e09a489a31b30342b77cc55290f025d95c7e; affected c6a58ffed53612be86b758df1cdb0b0f4305e9cb before de8d6de0ee27be4b2b1e5b06f04aeacbabbba492; affected c6a58ffed53612be86b758df1cdb0b0f4305e9cb before 7f5611cbc4871c7fb1ad36c2e5a9edad63dca95c |
| Linux / Linux | affected 4.6; unaffected 0 before 4.6; unaffected 6.6.160 through 6.6.*; unaffected 6.12.10 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/33b3e09a489a31b30342b77cc55290f025d95c7e
- https://git.kernel.org/stable/c/de8d6de0ee27be4b2b1e5b06f04aeacbabbba492
- https://git.kernel.org/stable/c/7f5611cbc4871c7fb1ad36c2e5a9edad63dca95c
ADP enrichment
No English description supplied.
No references supplied.