netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 19 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() nft_unregister_obj() can concurrent with __nft_obj_type_get(), and there is not any protection when iterate over nf_tables_objects list in __nft_obj_type_get(). Therefore, there is potential data-race of nf_tables_objects list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_objects list in __nft_obj_type_get(), and use rcu_read_lock() in the caller nft_obj_type_get() to protect the entire type query process.
Why it matters now
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.10 and later | 5.10.219, 5.15.157, 6.1.88, 6.6.29, 6.8.8, 6.9 | Patch available | CNA |
- Linux VendorLinux Affected 4.10 and later Fixed in 5.10.219, 5.15.157, 6.1.88, 6.6.29, 6.8.8, 6.9 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.10 to before 5.15.157; 5.16 to before 6.1.88; 6.2 to before 6.6.29; 6.7 to before 6.8.8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* | 6.9 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* | 6.9 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* | 6.9 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:* | 6.9 rc4 | Vulnerable | Linux |
| cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* | 38 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* | 39 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* | 40 | Vulnerable | Fedoraproject |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.10 to before 5.15.157; 5.16 to before 6.1.88; 6.2 to before 6.6.29; 6.7 to before 6.8.8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* Versions 6.9 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* Versions 6.9 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* Versions 6.9 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:* Versions 6.9 rc4 Vulnerable ·Linux
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* Versions 40 Vulnerable ·Fedoraproject
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.219, 5.15.157, 6.1.88, 6.6.29, 6.8.8, 6.9
Red Hat 7 advisories
- RHSA-2024:6993 Released 2024-09-24 · Red Hat rating Importantkernel security update
- Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-tools-libs-devel-4.18.0-477.74.1.el8_8
- Red Hat Enterprise Linux BaseOS EUS (v.8.8) bpftool-4.18.0-477.74.1.el8_8, kernel-4.18.0-477.74.1.el8_8, kernel-abi-stablelists-4.18.0-477.74.1.el8_8 +19
- RHSA-2024:6753 Released 2024-09-18 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.123.1.el8_6, kernel-4.18.0-372.123.1.el8_6, kernel-abi-stablelists-4.18.0-372.123.1.el8_6 +14
- Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.123.1.el8_6, kernel-4.18.0-372.123.1.el8_6, kernel-abi-stablelists-4.18.0-372.123.1.el8_6 +19
- Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.123.1.el8_6, kernel-4.18.0-372.123.1.el8_6, kernel-abi-stablelists-4.18.0-372.123.1.el8_6 +14
- RHSA-2024:5928 Released 2024-08-28 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.33.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.33.1.el9_4, kernel-64k-devel-5.14.0-427.33.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.33.1.el9_4, kernel-5.14.0-427.33.1.el9_4, kernel-64k-5.14.0-427.33.1.el9_4 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.33.1.el9_4, libperf-5.14.0-427.33.1.el9_4
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.33.1.el9_4, kernel-rt-core-5.14.0-427.33.1.el9_4, kernel-rt-debug-5.14.0-427.33.1.el9_4 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.33.1.el9_4, kernel-rt-core-5.14.0-427.33.1.el9_4, kernel-rt-debug-5.14.0-427.33.1.el9_4 +9
Show 4 more Red Hat advisories
- RHSA-2024:5101 Released 2024-08-08 · Red Hat rating Importantkernel 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 Importantkernel-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
- RHSA-2024:4831 Released 2024-07-24 · Red Hat rating Importantkernel-rt security update
- Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt-5.14.0-284.75.1.rt14.360.el9_2, kernel-rt-core-5.14.0-284.75.1.rt14.360.el9_2, kernel-rt-debug-5.14.0-284.75.1.rt14.360.el9_2 +9
- Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt-5.14.0-284.75.1.rt14.360.el9_2, kernel-rt-core-5.14.0-284.75.1.rt14.360.el9_2, kernel-rt-debug-5.14.0-284.75.1.rt14.360.el9_2 +11
- RHSA-2024:4823 Released 2024-07-24 · Red Hat rating Importantkernel security update
- Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-tools-libs-devel-5.14.0-284.75.1.el9_2
- Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-64k-debug-devel-5.14.0-284.75.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.75.1.el9_2, kernel-64k-devel-5.14.0-284.75.1.el9_2 +10
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool-7.0.0-284.75.1.el9_2, kernel-5.14.0-284.75.1.el9_2, kernel-64k-5.14.0-284.75.1.el9_2 +29
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder EUS (v.8.8) | Fixed | RHSA-2024:6993 |
| Red Hat CodeReady Linux Builder EUS (v.9.2) | Fixed | RHSA-2024:4823 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:4823 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:5101 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2024:6753 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.6) | Fixed | RHSA-2024:6753 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.8) | Fixed | RHSA-2024:6993 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2024:4823 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.6) | Fixed | RHSA-2024:6753 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:5101 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux NFV (v. 8) | Fixed | RHSA-2024:5102 |
| Red Hat Enterprise Linux NFV (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux RT (v. 8) | Fixed | RHSA-2024:5102 |
| Red Hat Enterprise Linux RT (v. 9) | Fixed | RHSA-2024:5928 |
| Red Hat Enterprise Linux Real Time EUS (v.9.2) | Fixed | RHSA-2024:4831 |
| Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) | Fixed | RHSA-2024:4831 |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux AppStream EUS (v.9.2)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-27019
- 2026-10-03 Alias added: GHSA-7fqw-qhgj-3c8c
References
Patch 5
- https://git.kernel.org/stable/c/379bf7257bc5f2a1b1ca8514e08a871b7bf6d920
- https://git.kernel.org/stable/c/df7c0fb8c2b9f9cac65659332581b19682a71349
- https://git.kernel.org/stable/c/ad333578f736d56920e090d7db1f8dec891d815e
- https://git.kernel.org/stable/c/4ca946b19caf655a08d5e2266d4d5526025ebb73
- https://git.kernel.org/stable/c/d78d867dcea69c328db30df665be5be7d0148484
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Sources
- CVE-2024-27019 · CVE Program
- CVE-2024-27019 · NVD
- FIRST EPSS
- GHSA-7fqw-qhgj-3c8c · GitHub Advisory Database · CC BY 4.0
- CVE-2024-27019 · Red Hat security data · CC BY 4.0
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