CVE-2024-27019: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()
Vulnerability summary
CVE-2024-27019 is a high (CVSS 7.8) vulnerability in fedoraproject fedora. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.3% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 40 · Related 29Timeline
- 01-05-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
- NVDNIST4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
11%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.21% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu121 products
- linuxAll versions (No fix recorded) | < 5.4.0-192.212 | < 5.15.0-116.126 | < 6.8.0-38.38
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1130.140 | < 5.15.0-1065.71 | < 6.8.0-1011.12
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ e50092404c1bc7aaeb0a0f4077fa6f07b073a20f, < cade34279c2249eafe528564bd2e203e4ff15f88 | ≥ e50092404c1bc7aaeb0a0f4077fa6f07b073a20f, < 379bf7257bc5f2a1b1ca8514e08a871b7bf6d920 | ≥ e50092404c1bc7aaeb0a0f4077fa6f07b073a20f, < df7c0fb8c2b9f9cac65659332581b19682a71349 | ≥ e50092404c1bc7aaeb0a0f4077fa6f07b073a20f, < ad333578f736d56920e090d7db1f8dec891d815e | ≥ e50092404c1bc7aaeb0a0f4077fa6f07b073a20f, < 4ca946b19caf655a08d5e2266d4d5526025ebb73 | ≥ e50092404c1bc7aaeb0a0f4077fa6f07b073a20f, < d78d867dcea69c328db30df665be5be7d0148484 | 4.10
- linux_kernel≥ 4.10, < 5.15.157 | ≥ 5.16, < 6.1.88 | ≥ 6.2, < 6.6.29 | ≥ 6.7, < 6.8.8 | 6.9:rc1 | 6.9:rc2 | 6.9:rc3 | 6.9:rc4
Debian1 product
- linux< 6.1.90-1 | < 6.8.9-1
Fedoraproject1 product
- fedoraEOL38 | 39 | 40
4 vendors · 125 products