Threats Tagged 'cve-2025-40034'

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: tcp_bpf: Fix the sk_mem_uncharge logic in tcp_bpf_sendmsg (CVE-2024-56633) * kernel: KVM: x86: Load DR6 with guest value only before entering .vcpu_run() loop (CVE-2025-21839) * kernel: block: fix resource leak in blk_register_queue() error path (CVE-2025-37980) * kernel: dmaengine: idxd: fix memory leak in error handling path of idxd_alloc (CVE-2025-38015) * kernel: espintcp: remove encap socket caching to avoid reference leak (CVE-2025-38097) * kernel: bpf: fix ktls panic with sockmap (CVE-2025-38166) * kernel: bpf: Check rcu_read_lock_trace_held() in bpf_map_lookup_percpu_elem() (CVE-2025-38202) * kernel: bpf: Do not include stack ptr register in precision backtracking bookkeeping (CVE-2025-38279) * kernel: ring-buffer: Do not trigger WARN_ON() due to a commit_overrun (CVE-2025-38267) * kernel: phy: qcom-qmp-usb: Fix an NULL vs IS_ERR() bug (CVE-2025-38275) * kernel: ftrace: Fix UAF when lookup kallsym after ftrace disabled (CVE-2025-38346) * kernel: ACPICA: fix acpi operand cache leak in dswstate.c (CVE-2025-38345) * kernel: nvmet: fix memory leak of bio integrity (CVE-2025-38405) * kernel: netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto() (CVE-2025-38441) * kernel: net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime (CVE-2025-38470) * kernel: fs: writeback: fix use-after-free in __mark_inode_dirty() (CVE-2025-39866) * kernel: PCI/AER: Avoid NULL pointer dereference in aer_ratelimit() (CVE-2025-40034) * kernel: dm: fix NULL pointer dereference in __dm_suspend() (CVE-2025-40134) * kernel: Revert "NFSD: Remove the cap on number of operations per NFSv4 COMPOUND" (CVE-2025-40210) * kernel: Linux kernel MPTCP: Privilege escalation or denial of service via use-after-free in timer handling (CVE-2025-40257) * kernel: smb: client: fix potential cfid UAF in smb2_query_info_compound (CVE-2025-40320) * kernel: wifi: mac80211_hwsim: fix typo in frequency notification (CVE-2026-23040) * kernel: Kernel: Privilege escalation or denial of service in nf_tables via inverted element activity check (CVE-2026-23111) * kernel: Linux kernel: Denial of Service in ice driver due to race condition during VSI rebuild (CVE-2026-23210) * kernel: Linux kernel: Denial of service and memory corruption in RDMA umad (CVE-2026-23243) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 10 Release Notes linked from the References section.

In the Linux kernel, the following vulnerability has been resolved: PCI/AER: Avoid NULL pointer dereference in aer_ratelimit() When platform firmware supplies error information to the OS, e.g., via the ACPI APEI GHES mechanism, it may identify an error source device that doesn't advertise an AER Capability and therefore dev->aer_info, which contains AER stats and ratelimiting data, is NULL. pci_dev_aer_stats_incr() already checks dev->aer_info for NULL, but aer_ratelimit() did not, leading to NULL pointer dereferences like this one from the URL below: {1}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 0 {1}[Hardware Error]: event severity: corrected {1}[Hardware Error]: device_id: 0000:00:00.0 {1}[Hardware Error]: vendor_id: 0x8086, device_id: 0x2020 {1}[Hardware Error]: aer_cor_status: 0x00001000, aer_cor_mask: 0x00002000 BUG: kernel NULL pointer dereference, address: 0000000000000264 RIP: 0010:___ratelimit+0xc/0x1b0 pci_print_aer+0x141/0x360 aer_recover_work_func+0xb5/0x130 [8086:2020] is an Intel "Sky Lake-E DMI3 Registers" device that claims to be a Root Port but does not advertise an AER Capability. Add a NULL check in aer_ratelimit() to avoid the NULL pointer dereference. Note that this also prevents ratelimiting these events from GHES. [bhelgaas: add crash details to commit log]