CVE-2024-56601: net: inet: do not leave a dangling sk pointer in inet_create()
Vulnerability summary
CVE-2024-56601 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.1% 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 106 · Related 103Showing 100 of 108.
Timeline
- 27-12-2024PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: net: inet: do not leave a dangling sk pointer in inet_create() sock_init_data() attaches the allocated sk object to the provided sock object. If inet_create() fails later, the sk object is freed, but the sock object retains the dangling pointer, which may create use-after-free later. Clear the sk pointer in the sock object on error.
CVSS metrics
4 scores · 4 sources · 1 version- 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 · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.24% 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.
Ubuntu135 products
- linuxAll versions (No fix recorded) | < 5.4.0-211.231 | < 5.15.0-135.146 | < 6.8.0-58.60
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1142.152 | < 5.15.0-1080.87 | < 6.8.0-1027.29
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Suse4 products
- kernel-livepatch-SLE15-SP4_Update_35&distro=SUSE Linux Enterprise Live Patching 15 SP4< 7-150400.2.1
- kernel-livepatch-SLE15-SP5_Update_22&distro=SUSE Linux Enterprise Live Patching 15 SP5< 6-150500.2.2
- kernel-livepatch-SLE15-SP6_Update_7&distro=SUSE Linux Enterprise Live Patching 15 SP6< 7-150600.2.1
- kernel-livepatch-SLE15-SP6-RT_Update_7&distro=SUSE Linux Enterprise Live Patching 15 SP6< 7-150600.2.1
Linux2 products
- linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f8a3f255f7509a209292871715cda03779640c8d | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2bc34d8c8898ae9fddf4612501aabb22d76c2b2c | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 3e8258070b0f2aba66b3ef18883de229674fb288 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b4513cfd3a10c03c660d5d3d26c2e322efbfdd9b | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 25447c6aaa7235f155292b0c58a067347e8ae891 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 691d6d816f93b2a1008c14178399061466e674ef | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9365fa510c6f82e3aa550a09d0c5c6b44dbc78ff | 2.6.12
- linux_kernel< 5.4.287 | ≥ 5.5, < 5.10.231 | ≥ 5.11, < 5.15.174 | ≥ 5.16, < 6.1.120 | ≥ 6.2, < 6.6.66 | ≥ 6.7, < 6.12.5
Debian1 product
- linux< 6.1.123-1 | < 6.12.5-1
4 vendors · 142 products