Read the docs
Red Hat Security Advisory

RHSA-2026:34094

kernel security, bug fix, and enhancement update

Released 2026-07-01 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 18 records

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: ipv6: rpl: reserve mac_len headroom when recompressed SRH grows ipv6_rpl_srh_rcv() decompresses an RFC 6554 Source Routing Header, swaps the next segmen…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00732 Published 2026-05-21 Partial fix · 5.10.258, 5.15.209 +6 CWE-787
Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Completely fix fcport double free In qla24xx_els_dcmd_iocb() sp->free is set to qla2x00_els_dcmd_sp_free().

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.006 Published 2026-05-08 Partial fix · 6.1.191, 6.6.160 +7 CWE-415
TI-2026-31304 CVE-2026-43125 · GHSA-fr2c-799q-pg3x

dlm: validate length in dlm_search_rsb_tree

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00538 Published 2026-05-06 Partial fix · 5.15.224, 6.1.191 +5 CWE-787
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: tcp: fix potential race in tcp_v6_syn_recv_sock() Code in tcp_v6_syn_recv_sock() after the call to tcp_v4_syn_recv_sock() is done too late.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00298 Published 2026-05-06 Partial fix · 5.10.270, 5.15.221 +6 CWE-362
Priority MEDIUM 49

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix slab-use-after-free in __inet_lookup_established The ehash table lookups are lockless and rely on SLAB_TYPESAFE_BY_RCU to guarantee socket me…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00471 Published 2026-04-24 Partial fix · 5.15.203, 6.1.169 +5 CWE-416
Priority MEDIUM 48

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_inner: Fix IPv6 inner_thoff desync In nft_inner_parse_l2l3(), when processing inner IPv6 packets, ipv6_find_hdr() correctly computes the…

CVSS 3.1CRITICAL 9.1 Network No auth No interaction EPSS 0.00418 Published 2026-06-03 Fixed in 6.6.142, 6.12.92 +3 CWE-682
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL The SCTP_SENDALL path in sctp_sendmsg() iterates ep->asocs with list_for_each_…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00104 Published 2026-05-28 Fixed in 5.10.258, 5.15.209 +6 CWE-362
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() Sashiko points out the radix_tree itself is RCU safe, but nothing ever frees the mlx4_srq struct with…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00144 Published 2026-05-28 Partial fix · 6.1.191, 6.6.160 +4 CWE-366
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() mlx5_ib_dev_res_srq_init() allocates two SRQs, s0 and s1.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00142 Published 2026-05-28 Fixed in 6.6.140, 6.12.88 +3 CWE-825
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: exit: prevent preemption of oopsing TASK_DEAD task When an already-exiting task oopses, make_task_dead() currently calls do_task_dead() with preemption…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00132 Published 2026-05-28 Partial fix · 6.1.175, 6.6.140 +4 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix peer runtime UAF during format-change stop loopback_check_format() may stop the capture side when playback starts with parameters that…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00104 Published 2026-05-27 Partial fix · 5.10.259, 5.15.210 +6 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix double free in rxe_srq_from_init In rxe_srq_from_init(), the queue pointer 'q' is assigned to 'srq->rq.queue' before copying the SRQ numbe…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00199 Published 2026-05-27 Partial fix · 4.20, 5.10.259 +7 CWE-415
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: strictly check for maximum number of actions The maximum number of flowtable hardware offload actions in IPv6 is: * ethernet mangl…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00178 Published 2026-05-08 Partial fix · 5.15.203, 6.1.168 +5 CWE-122
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Fix double dma_buf_unpin in failure path In ib_umem_dmabuf_get_pinned_with_dma_device(), the call to ib_umem_dmabuf_map_pages() can fail.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00139 Published 2026-05-06 Partial fix · 6.1.165, 6.6.128 +4 CWE-415
TI-2026-18628 CVE-2026-23191 · GHSA-x3gh-q355-f5px

ALSA: aloop: Fix racy access at PCM trigger

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix racy access at PCM trigger The PCM trigger callback of aloop driver tries to check the PCM state and stop the stream of the tied substr…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00133 Published 2026-02-14 Partial fix · 5.10.270, 5.15.221 +5 CWE-362
Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_helper: pass helper to expect cleanup nf_conntrack_helper_unregister() calls nf_ct_expect_iterate_destroy() to remove expectatio…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00131 Published 2026-05-01 Partial fix · 5.10.253, 5.15.203 +6 CWE-416
Priority LOW 24

In the Linux kernel, the following vulnerability has been resolved: cachestat: fix page cache statistics permission checking When the 'cachestat()' system call was added in commit cf264e1329fb ("cachestat: implement cach…

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00204 Published 2025-02-10 Partial fix · 6.6.75, 6.12.12 +2
Priority LOW 24

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: clamp maximum hashtable size to INT_MAX Use INT_MAX as maximum size for the conntrack hashtable.

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00219 Published 2025-01-19 Partial fix · 5.10.234, 5.15.177 +4