(RHSA-2024:6567) Moderate: kernel security update

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 for multiple streams case (CVE-2024-40927)

• kernel: cxl/region: Fix memregion leaks in devm_cxl_add_region() (CVE-2024-40936)

• kernel: net/sched: Fix UAF when resolving a clash (CVE-2024-41040)

• kernel: ppp: reject claimed-as-LCP but actually malformed packets (CVE-2024-41044)

• kernel: mm: prevent derefencing NULL ptr in pfn_section_valid() (CVE-2024-41055)

• kernel: PCI/MSI: Fix UAF in msi_capability_init (CVE-2024-41096)

• kernel: xdp: Remove WARN() from __xdp_reg_mem_model() (CVE-2024-42082)

• kernel: x86: stop playing stack games in profile_pc() (CVE-2024-42096)

• kernel: Revert "mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again" (CVE-2024-42102)

• kernel: mm: avoid overflows in dirty throttling logic (CVE-2024-42131)

• kernel: nvme: avoid double free special payload (CVE-2024-41073)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.