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TI-2023-29655 Aliases CVE-2023-53365GHSA-29x7-qr43-qqmw

ip6mr: Fix skb_under_panic in ip6mr_cache_report()

Priority LOW 24Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 26 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: ip6mr: Fix skb_under_panic in ip6mr_cache_report() skbuff: skb_under_panic: text:ffffffff88771f69 len:56 put:-4 head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:192! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 2 PID: 22968 Comm: kworker/2:11 Not tainted 6.5.0-rc3-00044-g0a8db05b571a #236 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:skb_panic+0x152/0x1d0 Call Trace: <TASK> skb_push+0xc4/0xe0 ip6mr_cache_report+0xd69/0x19b0 reg_vif_xmit+0x406/0x690 dev_hard_start_xmit+0x17e/0x6e0 __dev_queue_xmit+0x2d6a/0x3d20 vlan_dev_hard_start_xmit+0x3ab/0x5c0 dev_hard_start_xmit+0x17e/0x6e0 __dev_queue_xmit+0x2d6a/0x3d20 neigh_connected_output+0x3ed/0x570 ip6_finish_output2+0x5b5/0x1950 ip6_finish_output+0x693/0x11c0 ip6_output+0x24b/0x880 NF_HOOK.constprop.0+0xfd/0x530 ndisc_send_skb+0x9db/0x1400 ndisc_send_rs+0x12a/0x6c0 addrconf_dad_completed+0x3c9/0xea0 addrconf_dad_work+0x849/0x1420 process_one_work+0xa22/0x16e0 worker_thread+0x679/0x10c0 ret_from_fork+0x28/0x60 ret_from_fork_asm+0x11/0x20 When setup a vlan device on dev pim6reg, DAD ns packet may sent on reg_vif_xmit(). reg_vif_xmit() ip6mr_cache_report() skb_push(skb, -skb_network_offset(pkt));//skb_network_offset(pkt) is 4 And skb_push declared as: void *skb_push(struct sk_buff *skb, unsigned int len); skb->data -= len; //0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850 skb->data is set to 0xffff887f5f86a850, which is invalid mem addr, lead to skb_push() fails.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00194 9th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.14.322, 4.19.291, 5.4.253 +5Red Hat: 12 advisoriesRed Hat: 26 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux2.6.26 and later4.14.322, 4.19.291, 5.4.253, 5.10.190, 5.15.126, 6.1.45, 6.4.10, 6.5Patch availableCNA
  • Linux VendorLinux Affected 2.6.26 and later Fixed in 4.14.322, 4.19.291, 5.4.253, 5.10.190, 5.15.126, 6.1.45, 6.4.10, 6.5 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*2.6.26 to before 4.14.322; 4.15 to before 4.19.291; 4.20 to before 5.4.253; 5.5 to before 5.10.190; 5.11 to before 5.15.126; 5.16 to before 6.1.45; 6.2 to before 6.4.10VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*6.5 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*6.5 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*6.5 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*6.5 rc4VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 2.6.26 to before 4.14.322; 4.15 to before 4.19.291; 4.20 to before 5.4.253; 5.5 to before 5.10.190; 5.11 to before 5.15.126; 5.16 to before 6.1.45; 6.2 to before 6.4.10 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:* Versions 6.5 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:* Versions 6.5 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:* Versions 6.5 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:* Versions 6.5 rc4 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.14.322, 4.19.291, 5.4.253, 5.10.190, 5.15.126, 6.1.45, 6.4.10, 6.5

Red Hat 12 advisories

  • RHSA-2025:23463 Released 2025-12-17 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.182.1.el8_4, kernel-4.18.0-305.182.1.el8_4, kernel-abi-stablelists-4.18.0-305.182.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.182.1.el8_4, kernel-4.18.0-305.182.1.el8_4, kernel-abi-stablelists-4.18.0-305.182.1.el8_4 +14
  • RHSA-2025:23445 Released 2025-12-17 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.178.1.el8_2, kernel-4.18.0-193.178.1.el8_2, kernel-abi-whitelists-4.18.0-193.178.1.el8_2 +14
  • RHSA-2025:22914 Released 2025-12-09 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt-3.10.0-1160.143.1.rt56.1295.el7, kernel-rt-debug-3.10.0-1160.143.1.rt56.1295.el7, kernel-rt-debug-devel-3.10.0-1160.143.1.rt56.1295.el7 +4
Show 9 more Red Hat advisories
  • RHSA-2025:22910 Released 2025-12-09 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bpftool-3.10.0-1160.143.1.el7, kernel-3.10.0-1160.143.1.el7, kernel-abi-whitelists-3.10.0-1160.143.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debug-devel-3.10.0-1160.143.1.el7, kernel-tools-libs-devel-3.10.0-1160.143.1.el7
  • RHSA-2025:22124 Released 2025-11-25 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-core-5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-debug-5.14.0-284.148.1.rt14.433.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-core-5.14.0-284.148.1.rt14.433.el9_2, kernel-rt-debug-5.14.0-284.148.1.rt14.433.el9_2 +11
  • RHSA-2025:22095 Released 2025-11-25 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.148.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.148.1.el9_2, kernel-64k-devel-5.14.0-284.148.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.148.1.el9_2, kernel-5.14.0-284.148.1.el9_2, kernel-64k-5.14.0-284.148.1.el9_2 +29
  • RHSA-2025:22087 Released 2025-11-25 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.155.1.rt21.227.el9_0, kernel-rt-core-5.14.0-70.155.1.rt21.227.el9_0, kernel-rt-debug-5.14.0-70.155.1.rt21.227.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.155.1.rt21.227.el9_0, kernel-rt-core-5.14.0-70.155.1.rt21.227.el9_0, kernel-rt-debug-5.14.0-70.155.1.rt21.227.el9_0 +7
  • RHSA-2025:22072 Released 2025-11-25 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.120.1.el8_8, kernel-4.18.0-477.120.1.el8_8, kernel-abi-stablelists-4.18.0-477.120.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.120.1.el8_8, kernel-4.18.0-477.120.1.el8_8, kernel-abi-stablelists-4.18.0-477.120.1.el8_8 +14
  • RHSA-2025:22066 Released 2025-11-25 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.155.1.el9_0, kernel-debug-devel-matched-5.14.0-70.155.1.el9_0, kernel-devel-5.14.0-70.155.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.155.1.el9_0, kernel-5.14.0-70.155.1.el9_0, kernel-abi-stablelists-5.14.0-70.155.1.el9_0 +14
  • RHSA-2025:22006 Released 2025-11-25 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.170.1.el8_6, kernel-4.18.0-372.170.1.el8_6, kernel-abi-stablelists-4.18.0-372.170.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.170.1.el8_6, kernel-4.18.0-372.170.1.el8_6, kernel-abi-stablelists-4.18.0-372.170.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.170.1.el8_6, kernel-4.18.0-372.170.1.el8_6, kernel-abi-stablelists-4.18.0-372.170.1.el8_6 +14
  • RHSA-2024:3138 Released 2024-05-22 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.el8_10, kernel-4.18.0-553.el8_10, kernel-abi-stablelists-4.18.0-553.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.el8_10
  • RHSA-2024:2394 Released 2024-04-30 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.13.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.13.1.el9_4, kernel-64k-devel-5.14.0-427.13.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.13.1.el9_4, kernel-5.14.0-427.13.1.el9_4, kernel-64k-5.14.0-427.13.1.el9_4 +29
    • Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.13.1.el9_4, libperf-5.14.0-427.13.1.el9_4
    • Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.13.1.el9_4, kernel-rt-core-5.14.0-427.13.1.el9_4, kernel-rt-debug-5.14.0-427.13.1.el9_4 +11
    • Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.13.1.el9_4, kernel-rt-core-5.14.0-427.13.1.el9_4, kernel-rt-debug-5.14.0-427.13.1.el9_4 +9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:2394
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:22066
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2025:22095
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2024:3138
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2024:2394
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2025:23445
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2025:23463
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2025:22006
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2025:22006
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2025:22072
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2025:22066
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2025:22095
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2025:23463
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2025:22006
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2025:22072
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:3138
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2024:2394
Red Hat Enterprise Linux NFV (v. 9)Fixed RHSA-2024:2394
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2025:22087
Red Hat Enterprise Linux RT (v. 9)Fixed RHSA-2024:2394
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2025:22087
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2025:22124
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2025:22124
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2025:22910
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2025:22910
Red Hat Enterprise Linux for Real Time (v. 7 ELS)Fixed RHSA-2025:22914
Not affected: 1 product
  • Red Hat Enterprise Linux 10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-53365
  2. 2026-10-03 Alias added: GHSA-29x7-qr43-qqmw

References

Patch 8

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences