CVE-2009-1897
The tun_chr_poll function in drivers/net/tun.c in the tun subsystem in the Linux kernel 2.6.30 and 2.6.30.1, when the -fno-delete-null-pointer-checks gcc option is omitted, allows local users to gain privileges via vectors involving a NULL pointer dereference and an mmap of /dev/net/tun, a different vulnerability than CVE-2009-1894.
- EPSS
- 1.5% chance of exploitation in the next 30 days; higher than 74% of CVEs (scores of 2026-10-31)
- CWE
- CWE-119
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0241.html
- http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0246.html
- http://article.gmane.org/gmane.linux.network/124939
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=3c8a9c63d5fd738c261bd0ceece04d9c8357ca13
- http://grsecurity.net/~spender/cheddar_bay.tgz