ALSA-2024:6567 — Moderate: kernel security update

Affected: AlmaLinux:9: bpftool, AlmaLinux:9: kernel, AlmaLinux:9: kernel-64k, AlmaLinux:9: kernel-64k-core, AlmaLinux:9: kernel-64k-debug, AlmaLinux:9: kernel-64k-debug-core, AlmaLinux:9: kernel-64k-debug-devel, AlmaLinux:9: kernel-64k-debug-devel-matched, AlmaLinux:9: kernel-64k-debug-modules, AlmaLinux:9: kernel-64k-debug-modules-core and 52 more

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: efivarfs: force RO when remounting if SetVariable is not supported (CVE-2023-52463) * kernel: nfsd: fix RELEASE_LOCKOWNER (CVE-2024-26629) * kernel: mm: cachestat: fix folio read-after-free in cache walk (CVE-2024-26630) * kernel: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again (CVE-2024-26720) * kernel: Bluetooth: af_bluetooth: Fix deadlock (CVE-2024-26886) * kernel: kprobes/x86: Use copy_from_kernel_nofault() to read from unsafe address (CVE-2024-26946) * kernel: KVM: SVM: Flush pages under kvm->lock to fix UAF in svm_register_enc_region() (CVE-2024-35791) * kernel: mm: cachestat: fix two shmem bugs (CVE-2024-35797) * kernel: x86/coco: Require seeding RNG with RDRAND on CoCo systems (CVE-2024-35875) * kernel: mm/hugetlb: fix missing hugetlb_lock for resv uncharge (CVE-2024-36000) * kernel: iommufd: Fix missing update of domains_itree after splitting iopt_area (CVE-2023-52801) * kernel: net: fix out-of-bounds access in ops_init (CVE-2024-36883) * kernel: regmap: maple: Fix cache corruption in regcache_maple_drop() (CVE-2024-36019) * kernel: usb-storage: alauda: Check whether the media is initialized (CVE-2024-38619) * kernel: net: bridge: mst: fix vlan use-after-free (CVE-2024-36979) * kernel: scsi: qedf: Ensure the copied buf is NUL terminated (CVE-2024-38559) * kernel: xhci: Handle TD clearing fo…

CVE-2024-41044 — ppp: reject claimed-as-LCP but actually malformed packets

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

ppp: reject claimed-as-LCP but actually malformed packets

Since 'ppp_async_encode()' assumes valid LCP packets (with code from 1 to 7 inclusive), add 'ppp_check_packet()' to ensure that LCP packet has an actual body beyond PPP_LCP header bytes, and reject claimed-as-LCP but actually malformed data otherwise.

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ALSA-2024:6567 — Moderate: kernel security update

CVE-2024-41044 — ppp: reject claimed-as-LCP but actually malformed packets