Linux Kernel Linux Kernel vulnerabilities
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Published CVEs affecting Linux Kernel Linux Kernel: 2 record(s), with affected versions and fixes.
CVE-2022-2503
Medium · 6.7
CWE-287 Aug 12, 2022
Linux Kernel LoadPin bypass via dm-verity table reload
Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5
CVE-2022-2327
High · 7.8
CWE-415 Jul 22, 2022
Use-after-free in io_uring ad work_flags in Linux Kernel
io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859