CVE-2024-24855: Race condition vulnerability in Linux kernel scsi device driver lpfc_unregister_fcf_rescan()
Vulnerability summary
CVE-2024-24855 is a medium (CVSS 5.0) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.9% of scored vulnerabilities.
Not severe (CVSS 5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 20 · Related 18Timeline
- 05-02-2024PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
A race condition was found in the Linux kernel's scsi device driver in lpfc_unregister_fcf_rescan() function. This can result in a null pointer dereference issue, possibly leading to a kernel panic or denial of service issue.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
8%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.18% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-476NULL Pointer DereferenceThe product dereferences a pointer that it expects to be valid but is NULL.
- CWE-362Concurrent Execution using Shared Resource with Improper SynchronizationThe product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
Affected systems
Known conditions: local access, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu106 products
- linux< 3.13.0-197.248 | < 4.4.0-252.286 | < 4.15.0-223.235 | < 5.4.0-174.193 | < 5.15.0-101.111
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.4.0-1129.135 | < 4.4.0-1167.182 | < 4.15.0-1166.179 | < 5.4.0-1121.131 | < 5.15.0-1056.61
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.133-1 | < 6.5.3-1
Linux1 product
- linux_kernel≤ 2.6.33.20 | ≥ 6.0, ≤ 6.4.16 | 2.6.34:rc1 | 6.5:rc1 | ≥ v2.6.34-rc2, < v6.5-rc2
3 vendors · 108 products
References
22 links- bugzilla.openanolis.cn/show_bug.cgi?id=8149Permissions Required
