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Red Hat Security Advisory

RHSA-2026:91489

kernel security, bug fix, and enhancement update

Released 2026-10-28 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 17 records

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Fix handling of MAY_BACKLOG requests MAY_BACKLOG requests can return EBUSY.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00681 Published 2026-05-19 Partial fix · 5.10.258, 5.15.209 +6 CWE-390
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: vxlan: do not reuse cached ip_hdr() value after skb_tunnel_check_pmtu() skb_tunnel_check_pmtu() can change skb->head.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00514 Published 2026-07-19 Partial fix · 5.10.259, 5.15.210 +6 CWE-416
TI-2025-42214 CVE-2025-68745 · GHSA-vc2w-h9rc-mpxx

scsi: qla2xxx: Clear cmds after chip reset

Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Clear cmds after chip reset Commit aefed3e5548f ("scsi: qla2xxx: target: Fix offline port handling and host reset handling") caused two p…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00503 Published 2025-12-24 Partial fix · 4.10, 4.15 +6
Priority MEDIUM 46

In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: validate reply message payload bounds against transfer length nvmet_auth_reply() accesses the variable-length rval[] array using attacker-co…

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00563 Published 2026-07-25 Partial fix · 6.1.191, 6.6.145 +4 CWE-125
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read In qla2x00_status_entry(), the FWI2 status path advances sense_data and shrinks par_sense…

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00714 Published 2026-09-16 Partial fix · 5.10.270, 5.15.221 +6
Priority MEDIUM 40

In the Linux kernel, the following vulnerability has been resolved: mac802154: llsec: add skb_cow_data() before in-place crypto llsec_do_encrypt_unauth(), llsec_do_encrypt_auth(), llsec_do_decrypt_unauth(), and llsec_do_…

CVSS 3.1HIGH 8.8 Adjacent network No auth No interaction EPSS 0.00307 Published 2026-07-19 Partial fix · 5.10.260, 5.15.211 +6 CWE-416
Priority LOW 38

In the Linux kernel, the following vulnerability has been resolved: selinux: check connect-related permissions on TCP Fast Open Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to en…

CVSS 3.1HIGH 8.4 Local Low privileges No interaction EPSS 0.00166 Published 2026-08-15 Partial fix · 6.1.178, 6.6.145 +4
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: bound the hwdep mmap fault offset snd_us428ctls_vm_fault() turns the faulting page offset into a kernel address with no bound of any kind:…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00129 Published 2026-08-22 Partial fix · 5.10.266, 5.15.216 +6
TI-2026-45582 CVE-2026-64017 · GHSA-pqjq-mhgh-j532

blk-mq: pop cached request if it is usable

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: blk-mq: pop cached request if it is usable When submitting a bio to blk-mq, if the task should sleep after peeking a cached request, but before it pops…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00126 Published 2026-07-19 Partial fix · 6.1.191, 6.6.161 +5 CWE-416
TI-2026-45368 CVE-2026-63802 · GHSA-22rm-57qw-fv2w

blk-cgroup: fix UAF in __blkcg_rstat_flush()

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix UAF in __blkcg_rstat_flush() When multiple blkgs in the same blkcg are released concurrently, a use-after-free can occur.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00102 Published 2026-07-19 Partial fix · 6.4, 6.6.144 +4 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: procfs: fix missing RCU protection when reading real_parent in do_task_stat() When reading /proc/[pid]/stat, do_task_stat() accesses task->real_parent w…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00121 Published 2026-06-03 Partial fix · 5.10.252, 5.15.202 +6 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: fix race conditions in sco_sock_connect() sco_sock_connect() checks sk_state and sk_type without holding the socket lock.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00097 Published 2026-05-01 Fixed in 6.1.168, 6.6.134 +4 CWE-362
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate LTK enc_size on load Load Long Term Keys stores the user-provided enc_size and later uses it to size fixed-size stack operatio…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00129 Published 2026-05-01 Partial fix · 5.10.253, 5.15.203 +6 CWE-787
TI-2025-26472 CVE-2025-39797 · GHSA-p94f-8hph-rvrp

xfrm: Duplicate SPI Handling

Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: xfrm: Duplicate SPI Handling The issue originates when Strongswan initiates an XFRM_MSG_ALLOCSPI Netlink message, which triggers the kernel function xfr…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00161 Published 2025-09-12 Partial fix · 6.1.191, 6.6.103 +4
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() target_tg_pt_gp_members_show() formats LUN paths with snprintf() into a 256-b…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.00142 Published 2026-05-28 Partial fix · 5.10.258, 5.15.209 +6 CWE-126
Priority LOW 30

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_cthelper: fix OOB read in nfnl_cthelper_dump_table() nfnl_cthelper_dump_table() has a 'goto restart' that jumps to a label inside t…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.00132 Published 2026-05-08 Partial fix · 5.10.253, 5.15.203 +6 CWE-125
Priority LOW 24

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Cap AEAD AD length to 0x80000000 In order to prevent arithmetic overflows when checking the TX buffer size, cap the associated data len…

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00144 Published 2026-06-24 Partial fix · 5.10.258, 5.15.209 +7