{"id":"ALSA-2021:3057","summary":"Important: kernel security, bug fix, and enhancement update","details":"The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)\n\n* kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)\n\n* kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)\n\nFor 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.\n\nBug Fix(es):\n\n* Urgent: Missing dptf_power.ko module in AlmaLinux8 (BZ#1968381)\n\n* [mlx5] kdump over NFS fails: mlx5 driver gives error \"Stop room 95 is bigger than the SQ size 64\" (BZ#1969909)\n\n* BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 in bluetooth  hci_error_reset on intel-tigerlake-h01 (BZ#1972564)\n\n* Update CIFS to kernel 5.10 (BZ#1973637)\n\n* Backport \"tick/nohz: Conditionally restart tick on idle exit\" to AlmaLinux 8.5 (BZ#1978710)\n\n* Significant performance drop starting on kernel-4.18.0-277 visible on mmap benchmark (BZ#1980314)\n\n* Inaccessible NFS server overloads clients (native_queued_spin_lock_slowpath connotation?) (BZ#1980613)\n\n* [AlmaLinux8.4 BUG],RialtoMLK, I915 graphic driver failed to boot with one new 120HZ panel (BZ#1981250)\n\n* act_ct: subject to DNAT tuple collision (BZ#1982494)\n\nEnhancement(s):\n\n* [Lenovo 8.5 FEAT] drivers/nvme - Update to the latest upstream (BZ#1965415)","modified":"2026-02-04T04:01:30.040240Z","published":"2021-08-10T11:56:07Z","related":["CVE-2021-22543","CVE-2021-22555","CVE-2021-3609"],"references":[{"type":"REPORT","url":"https://vulners.com/cve/CVE-2021-22543"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2021-22555"},{"type":"REPORT","url":"https://vulners.com/cve/CVE-2021-3609"}],"affected":[{"package":{"name":"kernel-tools-libs-devel","ecosystem":"AlmaLinux:8","purl":"pkg:rpm/almalinux/kernel-tools-libs-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.18.0-305.12.1.el8_4"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux8/ALSA-2021:3057.json"}}],"schema_version":"1.7.3"}