Threats Tagged 'cve-2026-68159'

This security update provides a functional equivalent of RHSA-2026:70459. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:70459.

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Linux kernel t7xx WWAN driver: Denial of Service via buffer overflow (CVE-2026-23172) * kernel: xfrm: hold dev ref until after transport_finish NF_HOOK (CVE-2026-31663) * kernel: RDMA/rxe: Fix race condition in QP timer handlers (CVE-2026-45910) * kernel: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (CVE-2026-46043) * kernel: RDMA/rxe: Reject unknown opcodes before ICRC processing (CVE-2026-46133) * kernel: RDMA/rxe: Reject non-8-byte ATOMIC_WRITE payloads (CVE-2026-46114) * kernel: net: ena: PHC: Fix potential use-after-free in get_timestamp (CVE-2026-52971) * kernel: IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN (CVE-2026-53176) * kernel: ALSA: timer: Forcibly close timer instances at closing (CVE-2026-53193) * kernel: USB: serial: io_ti: fix heap overflow in get_manuf_info() (CVE-2026-53196) * kernel: xfrm: policy: fix use-after-free on inexact bin in xfrm_policy_bysel_ctx() (CVE-2026-53239) * kernel: ALSA: timer: Fix UAF at snd_timer_user_params() (CVE-2026-53192) * kernel: wifi: mac80211: limit injected antenna index in ieee80211_parse_tx_radiotap (CVE-2026-63869) * kernel: ALSA: seq: Serialize UMP output teardown with event_input (CVE-2026-64029) * kernel: ip6: vti: Use ip6_tnl.net in vti6_siocdevprivate() (CVE-2026-63921) * kernel: xfrm: input: hold netns during deferred transport reinjection (CVE-2026-63919) * kernel: ip6: vti: Use ip6_tnl.net in vti6_changelink() (CVE-2026-63917) * kernel: netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check (CVE-2026-63913) * kernel: wifi: iwlwifi: mvm: fix driver-set TX rates on old devices (CVE-2026-64176) * kernel: wifi: cfg80211: advance loop vars in cfg80211_merge_profile() (CVE-2026-64174) * kernel: wifi: iwlwifi: mld: stop TX during firmware restart (CVE-2026-64175) * kernel: RDMA/rxe: Fix a use-after-free problem in rxe_mmap (CVE-2026-64582) * kernel: Linux kernel: libceph stack out-of-bounds write via crafted OSDMap (CVE-2026-68159) * kernel: Linux kernel: ALSA timer use-after-free vulnerability allows privilege escalation (CVE-2026-68200) * kernel: Linux kernel (ice): Denial of Service via out-of-range ptype in VIRTCHNL (CVE-2026-68128) * kernel: Linux kernel: ath9k Wi-Fi driver use-after-free vulnerability leading to system crash (CVE-2026-68363) * kernel: xfrm: fix stale skb->prev after async crypto steals a GSO segment (CVE-2026-68426) * kernel: dm_early_create: fix freeing used table on dm_resume failure (CVE-2026-72102) * kernel: net: qrtr: fix 32-bit integer overflow in qrtr_endpoint_post() (CVE-2026-72298) * kernel: wifi: brcmfmac: cyw: fix heap overflow on a short auth frame (CVE-2026-72003) * kernel: selinux: check connect-related permissions on TCP Fast Open (CVE-2026-72243) Bug Fix(es) and Enhancement(s): * gfs2: filesystem withdrawal rework [rhel-9.8.z] (JIRA:RHEL-252540) * The slab cache entries for gfs2 and dlm grow very large for gfs2 filesystems [rhel-9.8.z] (JIRA:RHEL-252544) * gfs2: Get rid of sd_async_glock_wait [rhel-9.8.z] (JIRA:RHEL-253986) * [RHEL9.8z] watchdog: System panics during reboot when pretimeout is disabled (0) (JIRA:RHEL-255217) * [usb/xhci] kdump on Arrow Lake systems hangs system with dracut-initqueue Timed out errors [rhel-9.8.z] (JIRA:RHEL-256733) 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.

In the Linux kernel, the following vulnerability has been resolved: libceph: bound pg_{temp,upmap,upmap_items} length to CEPH_PG_MAX_SIZE __decode_pg_temp() decodes an user-controlled length but only rejects values large enough to overflow the allocation; it does not bound it to CEPH_PG_MAX_SIZE. The helper backs both pg_temp and pg_upmap decoding, and apply_upmap()/get_temp_osds() later copy the decoded list into the fixed-size on-stack array struct ceph_osds.osds[CEPH_PG_MAX_SIZE]. A monitor that sends an OSDMap with a pg_temp/pg_upmap entry longer than 32 thus causes a stack out-of-bounds write. An OSD set for a single PG can never exceed CEPH_PG_MAX_SIZE, so reject longer entries at decode time. The bound is well below the old overflow threshold, so it also covers the allocation-size overflow the previous check guarded against. BUG: KASAN: stack-out-of-bounds in ceph_pg_to_up_acting_osds Write of size 4 ... by task exploit kasan_report (mm/kasan/report.c:595) ceph_pg_to_up_acting_osds (net/ceph/osdmap.c:2617 net/ceph/osdmap.c:2833) calc_target (net/ceph/osd_client.c:1638) __submit_request (net/ceph/osd_client.c:2394) ceph_osdc_start_request (net/ceph/osd_client.c:2490) ceph_osdc_call (net/ceph/osd_client.c:5164) rbd_dev_image_probe (drivers/block/rbd.c:6899) do_rbd_add (drivers/block/rbd.c:7138) ... kernel BUG at net/ceph/osdmap.c:2670! [ idryomov: do the same in __decode_pg_upmap_items() ]