RLSA-2026:1690

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

Security Fix(es):

• kernel: Linux kernel: irqchip/gic-v2m use-after-free vulnerability (CVE-2025-37819)

• kernel: RDMA/core: Fix "KASAN: slab-use-after-free Read in ibregisterdevice" problem (CVE-2025-38022)

• kernel: Linux kernel use-after-free in eventpoll (CVE-2025-38349)

• kernel: iouring/msgring: ensure io_kiocb freeing is deferred for RCU (CVE-2025-38453)

• kernel: net/sched: mqprio: fix stack out-of-bounds write in tc entry parsing (CVE-2025-38568)

• kernel: drm/xe: Fix vmbindioctl double free bug (CVE-2025-38731)

• kernel: ASoC: Intel: bytcr_rt5640: Fix invalid quirk input mapping (CVE-2025-40154)

• kernel: net: use dstdevrcu() in sksetupcaps() (CVE-2025-40170)

• kernel: ipv6: use RCU in ip6_xmit() (CVE-2025-40135)

• kernel: ipv6: use RCU in ip6_output() (CVE-2025-40158)

• kernel: Linux kernel: vsock vulnerability may lead to memory corruption (CVE-2025-40248)

• kernel: mptcp: fix race condition in mptcpschedulework() (CVE-2025-40258)

• kernel: devlink: rate: Unset parent pointer in devlratenodes_destroy (CVE-2025-40251)

• kernel: Linux kernel: Use-after-free in procreaddirde() can lead to privilege escalation or denial of service. (CVE-2025-40271)

• kernel: Linux kernel: Out-of-bounds write in Bluetooth MGMT can lead to information disclosure and denial of service (CVE-2025-40294)

• kernel: Linux kernel: Information disclosure and denial of service in Bluetooth HCI event handling (CVE-2025-40301)

• kernel: Bluetooth: hcisync: fix race in hcicmdsyncdequeue_once (CVE-2025-40318)

• kernel: net: atlantic: fix fragment overflow handling in RX path (CVE-2025-68301)

• kernel: Bluetooth: hci_sock: Prevent race in socket write iter and sock bind (CVE-2025-68305)

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.