cbcvebase.
CVE-2022-49688
published 2025-02-26

CVE-2022-49688: In the Linux kernel, the following vulnerability has been resolved: afs: Fix dynamic root getattr The recent patch to make afs_getattr consult the server…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.30%
22.1th percentile
In the Linux kernel, the following vulnerability has been resolved: afs: Fix dynamic root getattr The recent patch to make afs_getattr consult the server didn't account for the pseudo-inodes employed by the dynamic root-type afs superblock not having a volume or a server to access, and thus an oops occurs if such a directory is stat'd. Fix this by checking to see if the vnode->volume pointer actually points anywhere before following it in afs_getattr(). This can be tested by stat'ing a directory in /afs. It may be sufficient just to do "ls /afs" and the oops looks something like: BUG: kernel NULL pointer dereference, address: 0000000000000020 ... RIP: 0010:afs_getattr+0x8b/0x14b ... Call Trace: vfs_statx+0x79/0xf5 vfs_fstatat+0x49/0x62

Affected

26 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 5.18.14-1 (bookworm)linux 5.18.14-1 (bookworm)
linuxlinux——
linuxlinux——
linuxlinux>= 2aeb8c86d49967552394d5e723f87454cb53f501 < 7844ceada44eca740d31beb3d97b8511b1ca0a9b7844ceada44eca740d31beb3d97b8511b1ca0a9b
linuxlinux>= 2aeb8c86d49967552394d5e723f87454cb53f501 < cb78d1b5efffe4cf97e16766329dd7358aed3debcb78d1b5efffe4cf97e16766329dd7358aed3deb
linuxlinux>= 4.19.245 < 4.19.2504.19.250
linuxlinux>= 5.10.118 < 5.10.1275.10.127
linuxlinux>= 5.15.42 < 5.15.515.15.51
linuxlinux>= 5.17.10 < 5.185.18
linuxlinux>= 5.4.196 < 5.4.2025.4.202
linuxlinux>= 61a4cc41e5c1b77d05a12798f8032050aa75f3c8 < 7b564e3254b7db5fbfbf11a824627a6c31b932b47b564e3254b7db5fbfbf11a824627a6c31b932b4
linuxlinux>= 94bf8bfb009fad247d02f12e4c443411c8445412 < 2b2bba96526f25f2eba74ecadb031de2e05a83ce2b2bba96526f25f2eba74ecadb031de2e05a83ce
linuxlinux>= b76ea7c06b24dcf97ea3379b6957d5b99c346ea0 < 65c24caf1b9f5b08397c6e805ec24ebc390c6e4d65c24caf1b9f5b08397c6e805ec24ebc390c6e4d
linuxlinux>= dba1941f5bc3de6b460685155b89ae1182824fc8 < e3a232e5767051483ffad4cef7d0a89d292a192be3a232e5767051483ffad4cef7d0a89d292a192b
linuxlinux_kernel——
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 5.10.127-15.10.127-1
linuxlinux_kernel>= 0 < 5.18.14-15.18.14-1
linuxlinux_kernel>= 0 < 5.18.14-15.18.14-1
linuxlinux_kernel>= 0 < 5.18.14-15.18.14-1
linuxlinux_kernel>= 4.19.245 < 4.19.2504.19.250
linuxlinux_kernel>= 5.10.118 < 5.10.1275.10.127
linuxlinux_kernel>= 5.15.42 < 5.15.515.15.51
linuxlinux_kernel>= 5.17.10 < 5.185.18
linuxlinux_kernel>= 5.18.1 < 5.18.85.18.8

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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