Description
In the Linux kernel, the following vulnerability has been resolved: gfs2: fiemap page fault fix In gfs2_fiemap(), we are calling iomap_fiemap() while holding the inode glock. This can lead to recursive glock taking if the fiemap buffer is memory mapped to the same inode and accessing it triggers a page fault. Fix by disabling page faults for iomap_fiemap() and faulting in the buffer by hand if necessary. Fixes xfstest generic/742.
Product status
e9079cce201784632aed4b1a3121ee38c1ced0b6 (git) before 5d5d9ec957bfa1eb2b05861c19f5d701dd006db7
e9079cce201784632aed4b1a3121ee38c1ced0b6 (git) before cead3bebf3e318578b8a86a5472015d713d2a8a8
e9079cce201784632aed4b1a3121ee38c1ced0b6 (git) before e428670cfb2993d8c224effd076242ca6b0950de
e9079cce201784632aed4b1a3121ee38c1ced0b6 (git) before 5d2c4f182ea8516de8682e2b60411c03df00e3ea
e9079cce201784632aed4b1a3121ee38c1ced0b6 (git) before 2e121c53b581e40397ae08090a7af4ed10781fbc
e9079cce201784632aed4b1a3121ee38c1ced0b6 (git) before 9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab
e9079cce201784632aed4b1a3121ee38c1ced0b6 (git) before e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2
2.6.29
Any version before 2.6.29
5.15.202 (semver)
6.1.165 (semver)
6.6.128 (semver)
6.12.75 (semver)
6.18.16 (semver)
6.19.6 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/5d5d9ec957bfa1eb2b05861c19f5d701dd006db7
git.kernel.org/...c/cead3bebf3e318578b8a86a5472015d713d2a8a8
git.kernel.org/...c/e428670cfb2993d8c224effd076242ca6b0950de
git.kernel.org/...c/5d2c4f182ea8516de8682e2b60411c03df00e3ea
git.kernel.org/...c/2e121c53b581e40397ae08090a7af4ed10781fbc
git.kernel.org/...c/9d15fee888f0e8938c9aeed71ec9c2cbba0c88ab
git.kernel.org/...c/e411d74cc5ba290f85d0dd5e4d1df8f1d6d975d2