CVE-2025-21635
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2025-01-19
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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).
Weakness Classification (1)
Affected Software (12)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | c6a58ffed53612be86b758df1cdb0b0f4305e9cb < 6f353c2230c199f343406c08482940ec5d8ba89c |
| Linux | Linux | c6a58ffed53612be86b758df1cdb0b0f4305e9cb < 33b3e09a489a31b30342b77cc55290f025d95c7e |
| Linux | Linux | c6a58ffed53612be86b758df1cdb0b0f4305e9cb < de8d6de0ee27be4b2b1e5b06f04aeacbabbba492 |
| Linux | Linux | c6a58ffed53612be86b758df1cdb0b0f4305e9cb < 7f5611cbc4871c7fb1ad36c2e5a9edad63dca95c |
| Linux | Linux | 4.6 |
| linux | linux_kernel | 4.6 – 6.12.10 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |