Red Hat Security AdvisoryRHSA-2026:85321
kernel security, bug fix, and enhancement update
Released 2026-10-19 · Red Hat rating Important · View on Red Hat →
Fixes 19 records
Priority MEDIUM 50
In the Linux kernel, the following vulnerability has been resolved: sctp: auth: verify auth requirement when auth_chunk is NULL sctp_auth_chunk_verify() returns true unconditionally when chunk->auth_chunk is NULL, silent…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.0058 · Published 2026-08-10 · Partial fix · 5.10.265, 5.15.216 +6 CWE-287
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: sctp: validate cookie AUTH state before use When cookie authentication is disabled, COOKIE_ECHO restores fixed-size AUTH fields directly from peer-contr…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00524 · Published 2026-08-26 · Partial fix · 6.6.160, 6.12.114 +2
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: sctp: keep chunk->transport in step with the list it is queued on __sctp_outq_flush_rtx() moves a gap-acked chunk onto another transport's transmitted l…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.005 · Published 2026-08-22 · Partial fix · 5.10.265, 5.15.216 +6
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: tipc: clear sock->sk on the failed-insert path in tipc_sk_create() When tipc_sk_create() fails to insert the new socket (tipc_sk_insert() returns non-ze…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00525 · Published 2026-08-10 · Partial fix · 5.10.265, 5.15.216 +11 CWE-416
Priority MEDIUM 46
In the Linux kernel, the following vulnerability has been resolved: smb: client: reject a tree connect response whose byte count is too small CIFSTCon() bounds its strnlen() over the byte area with the server's ByteCount…
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00491 · Published 2026-09-11 · Partial fix · 6.1.191, 6.6.160 +4
Priority MEDIUM 43
In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt…
CVSS 3.1CRITICAL 9.3· Local · No auth · No interaction · EPSS 0.00788 · Published 2026-10-15 · Partial fix · 5.10.272, 5.15.223 +6 CWE-20
Priority MEDIUM 43
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() coalesce_t2() computes data pointers directly from server-supplied DataOffs…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00552 · Published 2026-09-11 · Partial fix · 5.10.273, 5.15.224 +6
Priority MEDIUM 41
In the Linux kernel, the following vulnerability has been resolved: tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done tipc_aead_decrypt() goes straight from tipc_bearer_hold(b) to crypto_aead_decrypt(req) with…
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.00513 · Published 2026-07-19 · Partial fix · 5.10.260, 5.15.211 +6 CWE-416
Priority MEDIUM 40
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Fix advertising data UAFs hci_find_adv_instance() returns an adv_info pointer that is valid only while hdev->lock is held.
CVSS 3.1HIGH 8.8· Adjacent network · No auth · No interaction · EPSS 0.00249 · Published 2026-08-15 · Partial fix · 5.16, 6.1.184 +5
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: sctp: validate stream count in sctp_process_strreset_inreq() When processing a RESET_IN_REQUEST from a peer, sctp_process_strreset_inreq() derives the s…
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00512 · Published 2026-08-10 · Partial fix · 5.10.265, 5.15.216 +6 CWE-190
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: sctp: avoid auth_enable sysctl UAF during netns teardown proc_sctp_do_auth() updates the SCTP control socket after changing net.sctp.auth_enable.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00198 · Published 2026-08-10 · Partial fix · 5.4.292, 5.10.266 +7 CWE-416
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrm_state_mtu Leo Lin reported OOB write issue in esp component: xfrm_state_mtu() returns u32 but performs its arithmetic…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00144 · Published 2026-07-19 · Partial fix · 5.10.259, 5.15.210 +6 CWE-191
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: sctp: fix race between sctp_wait_for_connect and peeloff sctp_wait_for_connect() drops and re-acquires the socket lock while waiting for the association…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00131 · Published 2026-07-19 · Partial fix · 5.10.259, 5.15.210 +6 CWE-362
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: xfrm: espintcp: do not reuse an in-progress partial send espintcp keeps a single in-flight transmit in ctx->partial.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00096 · Published 2026-06-24 · Partial fix · 5.10.259, 5.15.210 +6 CWE-362
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdev_put to RCU release ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already detached the device.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00132 · Published 2026-04-25 · Partial fix · 5.15.224, 6.1.168 +5 CWE-362
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: exec: Cleanup POSIX timers right after de_thread() A per-thread CPU timer holds a reference to the PID of the thread it is attached to and, while it is…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00185 · Published 2026-10-06 · Partial fix · 6.1.191, 6.6.158 +4
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: signal: Prevent exec() race Hyunwoo debugged the following KASAN UAF splat: BUG: KASAN: slab-use-after-free in __send_signal_locked+0xb27/0xba0 Write of…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00143 · Published 2026-10-06 · Fixed in 6.18.54, 7.2.8 +1
Priority LOW 30
In the Linux kernel, the following vulnerability has been resolved: sctp: diag: reject stale associations in dump_one path The SCTP exact sock_diag lookup can hold a transport reference, block on lock_sock(sk), and then…
CVSS 3.1HIGH 7.1· Local · Low privileges · No interaction · EPSS 0.00128 · Published 2026-06-24 · Partial fix · 5.10.259, 5.15.210 +6 CWE-416
Priority LOW 24
In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() svdm_consume_modes() checks pmdata->altmodes against the array size once be…
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.0016 · Published 2026-07-19 · Partial fix · 6.1.191, 6.6.160 +4