CVE-2012-1090 (retired)

Priority
Description
The cifs_lookup function in fs/cifs/dir.c in the Linux kernel before 3.2.10
allows local users to cause a denial of service (OOPS) via attempted access
to a special file, as demonstrated by a FIFO.
"The cifs code will attempt to open files on lookup under certain
circumstances. What happens though if we find that the file we opened
was actually a FIFO or other special file? Currently, the open
filehandle just ends up being leaked leading to a dentry refcount
mismatch and oops on umount."
Ubuntu-Description
A flaw was discovered in the Linux kernel's cifs file system. An
unprivileged local user could exploit this flaw to crash the system leading
to a denial of service.
Notes
 apw> currently sitting in the master branch of the tree below, waiting
 apw> on merge with linus:
 apw> git://git.samba.org/sfrench/cifs-2.6
 apw> see:
 apw> cifs: fix dentry refcount leak when opening a FIFO on lookup
 apw> now upstream (see below)
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):not-affected (3.2.0-19.30)
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.2.0-16.19)
Patches:
Introduced by 8db14ca12569fe885694bd3d5ff84c2d973d3cb0Fixed by 5bccda0ebc7c0331b81ac47d39e4b920b198b2cd
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was not-affected [3.2.0-1601.4])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1001.10)
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (3.4.0-5.22)
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1003.3)
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (3.4.0-4.27)
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.8.0-36.36~16.04.1)
Package
linux-krillin:not-affected (1.0)
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was not-affected [3.5.0-18.29~precise1])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Patches:
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was not-affected [3.8.0-19.30~precise1])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):not-affected (3.13.0-24.46~precise1)
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (3.4.0-7.40)
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.2.0-1013.19)
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE
Ubuntu 16.04 LTS (Xenial Xerus):not-affected (4.4.0-1012.12)
Package
Upstream:released (3.3~rc7)
Ubuntu 12.04 ESM (Precise Pangolin):DNE (precise was not-affected [3.2.0-1412.15])
Ubuntu 16.04 LTS (Xenial Xerus):DNE
Package
linux-vegetahd:not-affected (1.0)
More Information

Updated: 2019-08-23 08:48:19 UTC (commit 436fd4ed4cf0038ddd382cb8649607ace163dda7)