Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:sctp: sysctl: rto_min/max: avoid using current->nsproxyAs 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 usingcontainer_of().Note that table->data could also be used directly, as this is the onlymember needed from the 'net' structure, but that would increase the sizeof this fix, to use '*data' everywhere 'net->sctp.rto_min/max' is used.
No PoCs from references.
- https://github.com/fkie-cad/nvd-json-data-feeds
- https://github.com/oogasawa/Utility-security
- https://github.com/w4zu/Debian_security