Read the docs
TI-2024-24518 Aliases CVE-2024-36971GHSA-3rf3-8wmx-cm8q

net: fix __dst_negative_advice() race

Priority CRITICAL 93Exploited in the wildCWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 38 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: net: fix __dst_negative_advice() race __dst_negative_advice() does not enforce proper RCU rules when sk->dst_cache must be cleared, leading to possible UAF. RCU rules are that we must first clear sk->sk_dst_cache, then call dst_release(old_dst). Note that sk_dst_reset(sk) is implementing this protocol correctly, while __dst_negative_advice() uses the wrong order. Given that ip6_negative_advice() has special logic against RTF_CACHE, this means each of the three ->negative_advice() existing methods must perform the sk_dst_reset() themselves. Note the check against NULL dst is centralized in __dst_negative_advice(), there is no need to duplicate it in various callbacks. Many thanks to Clement Lecigne for tracking this issue. This old bug became visible after the blamed commit, using UDP sockets.

Why it matters now

Exploitation Active In CISA KEV since 2024-08-07CISA due date 2024-08-28
EPSS 0.02701 86th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.19.316, 5.4.278, 5.10.219 +5Red Hat: 26 advisoriesRed Hat: 38 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.6 and later4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.94, 6.6.34, 6.9.4, 6.10Patch availableCNA
  • Linux VendorLinux Affected 4.6 and later Fixed in 4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.94, 6.6.34, 6.9.4, 6.10 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.6 to before 4.19.316; 4.20 to before 5.4.278; 5.5 to before 5.10.219; 5.11 to before 5.15.161; 5.16 to before 6.1.94; 6.2 to before 6.6.34; 6.7 to before 6.9.4VulnerableLinux
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.6 to before 4.19.316; 4.20 to before 5.4.278; 5.5 to before 5.10.219; 5.11 to before 5.15.161; 5.16 to before 6.1.94; 6.2 to before 6.6.34; 6.7 to before 6.9.4 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.19.316, 5.4.278, 5.10.219, 5.15.161, 6.1.94, 6.6.34, 6.9.4, 6.10

Red Hat 26 advisories

  • RHSA-2024:5858 Released 2024-08-26 · Red Hat rating Important
    kpatch-patch-5_14_0-70_85_1 security update
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) kpatch-patch-5_14_0-70_85_1-1-4.el9_0
  • RHSA-2024:5444 Released 2024-08-22 · Red Hat rating Important
    OpenShift Container Platform 4.13.48 bug fix and security update
    • Red Hat OpenShift Container Platform 4.13 openshift4/cloud-network-config-controller-rhel8, openshift4/egress-router-cni-rhel8, openshift4/kubevirt-csi-driver-rhel8 +47
  • RHSA-2024:5439 Released 2024-08-22 · Red Hat rating Important
    OpenShift Container Platform 4.15.28 bug fix and security update
    • Red Hat OpenShift Container Platform 4.15 openshift4/cloud-network-config-controller-rhel8, openshift4/driver-toolkit-rhel9, openshift4/egress-router-cni-rhel8 +47
Show 23 more Red Hat advisories
  • RHSA-2024:5433 Released 2024-08-22 · Red Hat rating Important
    OpenShift Container Platform 4.14.35 security update
    • Red Hat OpenShift Container Platform 4.14 openshift4/cloud-network-config-controller-rhel8, openshift4/driver-toolkit-rhel9, openshift4/egress-router-cni-rhel8 +47
  • RHSA-2024:5422 Released 2024-08-20 · Red Hat rating Important
    OpenShift Container Platform 4.16.8 bug fix and security update
    • Red Hat OpenShift Container Platform 4.16 openshift4/ose-cluster-kube-apiserver-rhel9-operator, rhcos
  • RHSA-2024:5522 Released 2024-08-20 · Red Hat rating Important
    kpatch-patch-4_18_0-553 security update
    • Red Hat Enterprise Linux BaseOS (v. 8) kpatch-patch-4_18_0-553-1-1.el8_10
  • RHSA-2024:5582 Released 2024-08-19 · Red Hat rating Important
    kpatch-patch-4_18_0-372_87_1 and kpatch-patch-4_18_0-372_91_1 security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) kpatch-patch-4_18_0-372_87_1-1-5.el8_6, kpatch-patch-4_18_0-372_91_1-1-4.el8_6
  • RHSA-2024:5200 Released 2024-08-19 · Red Hat rating Important
    OpenShift Container Platform 4.12.63 bug fix and security update
    • Red Hat OpenShift Container Platform 4.12 openshift4/ose-cloud-credential-operator, openshift4/ose-cluster-image-registry-operator, openshift4/ose-ibm-vpc-block-csi-driver-operator-rhel8 +4
  • RHSA-2024:5523 Released 2024-08-19 · Red Hat rating Important
    kpatch-patch-5_14_0-427_13_1 security update
    • Red Hat Enterprise Linux BaseOS (v. 9) kpatch-patch-5_14_0-427_13_1-1-2.el9_4
  • RHSA-2024:5521 Released 2024-08-19 · Red Hat rating Important
    kpatch-patch-5_14_0-284_48_1 and kpatch-patch-5_14_0-284_52_1 security update
    • Red Hat Enterprise Linux BaseOS EUS (v.9.2) kpatch-patch-5_14_0-284_48_1-1-5.el9_2, kpatch-patch-5_14_0-284_52_1-1-4.el9_2
  • RHSA-2024:5520 Released 2024-08-19 · Red Hat rating Important
    kpatch-patch-4_18_0-477_43_1 security update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.8) kpatch-patch-4_18_0-477_43_1-1-3.el8_8
  • RHSA-2024:5519 Released 2024-08-19 · Red Hat rating Important
    kpatch-patch-4_18_0-305_120_1 security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.4) kpatch-patch-4_18_0-305_120_1-1-4.el8_4
  • RHSA-2024:5363 Released 2024-08-15 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.31.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.31.1.el9_4, kernel-64k-devel-5.14.0-427.31.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.31.1.el9_4, kernel-5.14.0-427.31.1.el9_4, kernel-64k-5.14.0-427.31.1.el9_4 +29
    • Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.31.1.el9_4, libperf-5.14.0-427.31.1.el9_4
    • Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.31.1.el9_4, kernel-rt-core-5.14.0-427.31.1.el9_4, kernel-rt-debug-5.14.0-427.31.1.el9_4 +11
    • Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.31.1.el9_4, kernel-rt-core-5.14.0-427.31.1.el9_4, kernel-rt-debug-5.14.0-427.31.1.el9_4 +9
  • RHSA-2024:5388 Released 2024-08-14 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.138.1.el8_2, kernel-4.18.0-193.138.1.el8_2, kernel-abi-whitelists-4.18.0-193.138.1.el8_2 +14
  • RHSA-2024:5364 Released 2024-08-14 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.79.1.el9_2
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.79.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.79.1.el9_2, kernel-64k-devel-5.14.0-284.79.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.79.1.el9_2, kernel-5.14.0-284.79.1.el9_2, kernel-64k-5.14.0-284.79.1.el9_2 +29
  • RHSA-2024:5365 Released 2024-08-14 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.79.1.rt14.364.el9_2, kernel-rt-core-5.14.0-284.79.1.rt14.364.el9_2, kernel-rt-debug-5.14.0-284.79.1.rt14.364.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.79.1.rt14.364.el9_2, kernel-rt-core-5.14.0-284.79.1.rt14.364.el9_2, kernel-rt-debug-5.14.0-284.79.1.rt14.364.el9_2 +11
  • RHSA-2024:5281 Released 2024-08-13 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.118.1.el8_6, kernel-4.18.0-372.118.1.el8_6, kernel-abi-stablelists-4.18.0-372.118.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.118.1.el8_6, kernel-4.18.0-372.118.1.el8_6, kernel-abi-stablelists-4.18.0-372.118.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.118.1.el8_6, kernel-4.18.0-372.118.1.el8_6, kernel-abi-stablelists-4.18.0-372.118.1.el8_6 +14
  • RHSA-2024:5282 Released 2024-08-13 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV TUS (v.8.4) kernel-rt-4.18.0-305.138.1.rt7.214.el8_4, kernel-rt-core-4.18.0-305.138.1.rt7.214.el8_4, kernel-rt-debug-4.18.0-305.138.1.rt7.214.el8_4 +9
    • Red Hat Enterprise Linux RT TUS (v.8.4) kernel-rt-4.18.0-305.138.1.rt7.214.el8_4, kernel-rt-core-4.18.0-305.138.1.rt7.214.el8_4, kernel-rt-debug-4.18.0-305.138.1.rt7.214.el8_4 +7
  • RHSA-2024:5259 Released 2024-08-13 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bpftool-3.10.0-1160.123.1.el7, kernel-3.10.0-1160.123.1.el7, kernel-abi-whitelists-3.10.0-1160.123.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debug-devel-3.10.0-1160.123.1.el7, kernel-tools-libs-devel-3.10.0-1160.123.1.el7
  • RHSA-2024:5266 Released 2024-08-13 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.138.1.el8_4, kernel-4.18.0-305.138.1.el8_4, kernel-abi-stablelists-4.18.0-305.138.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.4) bpftool-4.18.0-305.138.1.el8_4, kernel-4.18.0-305.138.1.el8_4, kernel-abi-stablelists-4.18.0-305.138.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.4) bpftool-4.18.0-305.138.1.el8_4, kernel-4.18.0-305.138.1.el8_4, kernel-abi-stablelists-4.18.0-305.138.1.el8_4 +14
  • RHSA-2024:5261 Released 2024-08-13 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 7.7) bpftool-3.10.0-1062.90.1.el7, kernel-3.10.0-1062.90.1.el7, kernel-abi-whitelists-3.10.0-1062.90.1.el7 +8
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.90.1.el7
  • RHSA-2024:5255 Released 2024-08-13 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-tools-libs-devel-4.18.0-477.67.1.el8_8
    • Red Hat Enterprise Linux BaseOS EUS (v.8.8) bpftool-4.18.0-477.67.1.el8_8, kernel-4.18.0-477.67.1.el8_8, kernel-abi-stablelists-4.18.0-477.67.1.el8_8 +19
  • RHSA-2024:5257 Released 2024-08-13 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.112.1.el9_0, kernel-debug-devel-matched-5.14.0-70.112.1.el9_0, kernel-devel-5.14.0-70.112.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.112.1.el9_0, kernel-5.14.0-70.112.1.el9_0, kernel-abi-stablelists-5.14.0-70.112.1.el9_0 +14
  • RHSA-2024:5256 Released 2024-08-13 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.112.1.rt21.184.el9_0, kernel-rt-core-5.14.0-70.112.1.rt21.184.el9_0, kernel-rt-debug-5.14.0-70.112.1.rt21.184.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.112.1.rt21.184.el9_0, kernel-rt-core-5.14.0-70.112.1.rt21.184.el9_0, kernel-rt-debug-5.14.0-70.112.1.rt21.184.el9_0 +7
  • RHSA-2024:5101 Released 2024-08-08 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.16.1.el8_10, kernel-4.18.0-553.16.1.el8_10, kernel-abi-stablelists-4.18.0-553.16.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.16.1.el8_10
  • RHSA-2024:5102 Released 2024-08-08 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-core-4.18.0-553.16.1.rt7.357.el8_10, kernel-rt-debug-4.18.0-553.16.1.rt7.357.el8_10 +7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat CodeReady Linux Builder EUS (v.8.8)Fixed RHSA-2024:5255
Red Hat CodeReady Linux Builder EUS (v.9.2)Fixed RHSA-2024:5364
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2024:5257
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:5364
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2024:5101, RHSA-2024:5522
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2024:5363, RHSA-2024:5523
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2024:5388
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2024:5266
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2024:5281
Red Hat Enterprise Linux BaseOS E4S (v.8.4)Fixed RHSA-2024:5266, RHSA-2024:5519
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2024:5281, RHSA-2024:5582
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2024:5257, RHSA-2024:5858
Red Hat Enterprise Linux BaseOS EUS (v.8.8)Fixed RHSA-2024:5255, RHSA-2024:5520
Red Hat Enterprise Linux BaseOS EUS (v.9.2)Fixed RHSA-2024:5364, RHSA-2024:5521
Red Hat Enterprise Linux BaseOS TUS (v.8.4)Fixed RHSA-2024:5266
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2024:5281
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:5101
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2024:5102
Red Hat Enterprise Linux NFV (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2024:5256
Red Hat Enterprise Linux NFV TUS (v.8.4)Fixed RHSA-2024:5282
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2024:5102
Red Hat Enterprise Linux RT (v. 9)Fixed RHSA-2024:5363
Red Hat Enterprise Linux RT TUS (v.8.4)Fixed RHSA-2024:5282
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2024:5256
Red Hat Enterprise Linux Real Time EUS (v.9.2)Fixed RHSA-2024:5365
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2)Fixed RHSA-2024:5365
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2024:5259
Red Hat Enterprise Linux Server AUS (v. 7.7)Fixed RHSA-2024:5261
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2024:5259
Red Hat Enterprise Linux Server Optional AUS (v. 7.7)Fixed RHSA-2024:5261
Red Hat OpenShift Container Platform 4.12Fixed RHSA-2024:5200
Red Hat OpenShift Container Platform 4.13Fixed RHSA-2024:5444
Red Hat OpenShift Container Platform 4.14Fixed RHSA-2024:5433
Red Hat OpenShift Container Platform 4.15Fixed RHSA-2024:5439
Red Hat OpenShift Container Platform 4.16Fixed RHSA-2024:5422
Not affected: 12 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux AppStream (v. 9)
  • Red Hat Enterprise Linux BaseOS AUS (v.8.6)
  • Red Hat Enterprise Linux BaseOS E4S (v.8.6)
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8)
  • Red Hat Enterprise Linux BaseOS TUS (v.8.6)
  • Red Hat Enterprise Linux CRB (v. 9)
  • Red Hat OpenShift Container Platform 4.12
  • Red Hat OpenShift Container Platform 4.13
  • Red Hat OpenShift Container Platform 4.14
  • Red Hat OpenShift Container Platform 4.15
  • Red Hat OpenShift Container Platform 4.16

Timeline

  1. 2024-08-07 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2024-36971
  3. 2026-10-03 Alias added: GHSA-3rf3-8wmx-cm8q
  4. 2026-10-09 Affected versions changed · Red Hat

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