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:9p/net: fix improper handling of bogus negative read/write repliesIn p9_client_write() and p9_client_read_once(), if the serverincorrectly replies with success but a negative write/read count then wewould consider written (negative) <= rsize (positive) because bothvariables were signed.Make variables unsigned to avoid this problem.The reproducer linked below now fails with the following error insteadof a null pointer deref:9pnet: bogus RWRITE count (4294967295 > 3)
No PoCs from references.
- https://github.com/w4zu/Debian_security