Red Hat Security AdvisoryRHSA-2026:75747
kernel security, bug fix, and enhancement update
Released 2026-10-05 · Red Hat rating Important · View on Red Hat →
Fixes 29 records
Priority MEDIUM 50
In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: publish GC-visible tuple last nf_flow_table_iterate() only treats original-direction tuple nodes as owning entries.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00536 · Published 2026-08-26 · Partial fix · 5.10.266, 5.15.217 +6
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: ipvlan: inherit needed_headroom and needed_tailroom from phy_dev ipvlan devices inherit hard_header_len from phy_dev during ipvlan_init(), but leave nee…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00512 · Published 2026-08-26 · Partial fix · 6.1.184, 6.6.153 +4
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: ipvs: clear IPv4 options after rebasing tunnel ICMP errors ip_vs_in_icmp() rebases an skb from the outer ICMP packet to the quoted original request befo…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00514 · 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: netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp() sip_help_tcp() stores the size change of each NAT-rewritten SIP message in…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00388 · Published 2026-08-15 · Partial fix · 5.10.265, 5.15.216 +6
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() Sashiko found that iptunnel_pmtud_build_icmp() and iptunnel_pmtud_build…
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
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: gfs2: add some missing log locking Function gfs2_logd() calls the log flushing functions gfs2_ail1_start(), gfs2_ail1_wait(), and gfs2_ail1_empty() with…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00388 · Published 2026-06-24 · Partial fix · 5.15.209, 6.1.175 +5 CWE-362
Priority MEDIUM 46
In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() In some cases, iptunnel_pmtud_check_icmp() can be called while skb transport head…
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00514 · Published 2026-07-19 · Partial fix · 5.10.259, 5.15.210 +6 CWE-125
Priority MEDIUM 43
In the Linux kernel, the following vulnerability has been resolved: nvme: add missing SRCU grace period in error path nvme_alloc_ns() error path at out_unlink_ns removes ns from the namespace head siblings list with list…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00714 · Published 2026-09-16 · Partial fix · 5.10.273, 5.15.224 +6
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix host memory disclosure on R2T for a read command nvme_tcp_handle_r2t() does not check the direction of the request the R2T refers to.
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00432 · Published 2026-09-11 · Partial fix · 5.10.273, 5.15.224 +6
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: net: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink ip6gre_changelink() and ip6erspan_changelink() operate on at most two netns, dev_…
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.00151 · Published 2026-08-15 · Partial fix · 4.20, 5.5 +8 CWE-862
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: vxlan: require CAP_NET_ADMIN in the device netns for changelink A tunnel changelink() operates on at most two netns, dev_net(dev) and the sticky underla…
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.00146 · Published 2026-08-12 · Partial fix · 5.10.265, 5.15.216 +6 CWE-863
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink A tunnel changelink() operates on at most two netns, dev_net(dev) and the tunnel l…
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.00148 · Published 2026-07-19 · Partial fix · 5.10.261, 5.15.212 +6 CWE-862
Priority LOW 37
In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits When shadowing crypto access bits from a format0 apcb (crycb 0 or 1), the bits 64..255 are unchanged from whatev…
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.00126 · Published 2026-09-09 · Partial fix · 5.10.269, 5.15.220 +7
Priority LOW 37
In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Update x2APIC MSR intercepts if AVIC is inhibited while L2 is active Always update x2APIC MSR intercepts for L1 when AVIC is deactivated, even…
CVSS 3.1HIGH 8.2· Local · High privileges · No interaction · EPSS 0.00135 · Published 2026-08-15 · Partial fix · 6.1.183, 6.6.151 +4
Priority LOW 37
In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list mlx5_query_nic_vport_mac_list() sizes its firmware command buffer using the PF's log_m…
CVSS 3.1HIGH 8.7· Local · Low privileges · No interaction · EPSS 0.00126 · Published 2026-06-25 · Partial fix · 6.1.191, 6.6.143 +4 CWE-787
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst The br_netfilter fake rtable is embedded in struct net_bridge and is attached to bri…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00176 · Published 2026-08-15 · Partial fix · 5.10.270, 5.15.217 +6
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: ipvs: clear the svc scheduler ptr early on edit ip_vs_edit_service() while unbinding the old scheduler clears the svc->scheduler ptr after the scheduler…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00157 · Published 2026-06-25 · Partial fix · 3.19, 4.2 +8 CWE-416
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: Only release RCU read lock after ct_ft When looking up a flow table in act_ct in tcf_ct_flow_table_get(), rhashtable_lookup_fast() in…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00105 · Published 2026-06-09 · Partial fix · 5.10.258, 5.15.209 +6 CWE-362
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix slab-use-after-free in qd_put Commit a475c5dd16e5 ("gfs2: Free quota data objects synchronously") started freeing quota data objects during fi…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00186 · Published 2026-05-27 · Partial fix · 6.6.160, 6.12.75 +3 CWE-416
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag This is more of a preventive patch to make the code more consist…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00145 · Published 2026-02-04 · Partial fix · 5.10.249, 5.15.199 +5 CWE-20
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Prevent handling any completions after qp destroy HW may generate completions that indicates QP is destroyed.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00201 · Published 2025-12-24 · Partial fix · 5.15.124, 6.1.43 +2
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix mempool alloc size Convert the max size to bytes to match the units of the divisor that calculates the worst-case number of PRP entries.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00201 · Published 2025-12-24 · Partial fix · 5.10.163, 5.15.87 +3
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() The timestamp-only fast path dereferences the option stream as *(__be32 *)ptr, which ass…
CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.0049 · Published 2026-09-24 · Partial fix · 5.10.271, 5.15.222 +5
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed() Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls nvme_cmd_allowed().
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00168 · Published 2026-09-17 · Partial fix · 6.6.157, 6.12.110 +3
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path In sev_dbg_crypt(), the per-iteration transfer length is bounded by the source page offs…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00142 · Published 2026-07-19 · Partial fix · 5.10.260, 5.15.211 +6 CWE-787
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: media: tuner: xc5000: Fix use-after-free in xc5000_release The original code uses cancel_delayed_work() in xc5000_release(), which does not guarantee th…
CVSS 3.1HIGH 7.3· Local · Low privileges · User interaction · EPSS 0.00159 · Published 2025-10-15 · Fixed in 5.4.301, 5.10.246 +7
Priority LOW 32
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix unlikely race in gdlm_put_lock In gdlm_put_lock(), there is a small window of time in which the DFL_UNMOUNT flag has been set but the lockspac…
CVSS 3.1HIGH 7.0· Local · Low privileges · No interaction · EPSS 0.00156 · Published 2025-12-04 · Partial fix · 4.5, 4.10 +11
Priority LOW 30
In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send ib_uverbs_post_send() uses cmd.wqe_size from userspace without any validation befo…
CVSS 3.1HIGH 7.1· Local · Low privileges · No interaction · EPSS 0.00187 · Published 2026-05-27 · Partial fix · 5.10.252, 5.15.202 +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