Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: auth_enable: 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 'net' structure can be obtained from the table->data using container_of(). Note that table->data could also be used directly, but that would increase the size of this fix, while 'sctp.ctl_sock' still needs to be retrieved from 'net' structure.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b14878ccb7fac0242db82720b784ab62c467c0dc before cf387cdebfaebae228dfba162f94c567a67610c3; affected b14878ccb7fac0242db82720b784ab62c467c0dc before dc583e7e5f8515ca489c0df28e4362a70eade382; affected b14878ccb7fac0242db82720b784ab62c467c0dc before bd2a2939423566c654545fa3e96a656662a0af9e; affected b14878ccb7fac0242db82720b784ab62c467c0dc before 1b67030d39f2b00f94ac1f0af11ba6657589e4d3; affected b14878ccb7fac0242db82720b784ab62c467c0dc before 7ec30c54f339c640aa7e49d7e9f7bbed6bd42bf6; affected b14878ccb7fac0242db82720b784ab62c467c0dc before c184bc621e3cef03ac9ba81a50dda2dae6a21d36; affected b14878ccb7fac0242db82720b784ab62c467c0dc before 15649fd5415eda664ef35780c2013adeb5d9c695; affected e5eae4a0511241959498b180fa0df0d4f1b11b9c; affected 88830f227a1f96e44d82ddfcb0cc81d517ec6dd8; affected 3938b0336a93fa5faa242dc9e5823ac69df9e066; affected 3.10.41 before 3.11; affected 3.12.21 before 3.13; affected 3.14.5 before 3.15 |
| Linux / Linux | affected 3.15; unaffected 0 before 3.15; unaffected 5.4.292 through 5.4.*; unaffected 5.10.234 through 5.10.*; unaffected 5.15.177 through 5.15.*; unaffected 6.1.125 through 6.1.*; unaffected 6.6.72 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/cf387cdebfaebae228dfba162f94c567a67610c3
- https://git.kernel.org/stable/c/dc583e7e5f8515ca489c0df28e4362a70eade382
- https://git.kernel.org/stable/c/bd2a2939423566c654545fa3e96a656662a0af9e
- https://git.kernel.org/stable/c/1b67030d39f2b00f94ac1f0af11ba6657589e4d3
- https://git.kernel.org/stable/c/7ec30c54f339c640aa7e49d7e9f7bbed6bd42bf6
- https://git.kernel.org/stable/c/c184bc621e3cef03ac9ba81a50dda2dae6a21d36
- https://git.kernel.org/stable/c/15649fd5415eda664ef35780c2013adeb5d9c695
ADP enrichment
No English description supplied.
No English description supplied.
No English description supplied.
No references supplied.