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🛡️ CVE-2024-46842 — kernel

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

scsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info

In the Linux kernel, the following vulnerability has been resolved:

scsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info

The MBX_TIMEOUT return code is not handled in lpfc_get_sfp_info and the

routine unconditionally frees submitted mailbox commands regardless of

return status. The issue is that for MBX_TIMEOUT cases, when firmware

returns SFP information at a later time, that same mailbox memory region

references previously freed memory in its cmpl routine.

Fix by adding checks for the MBX_TIMEOUT return code. During mailbox

resource cleanup, check the mbox flag to make sure that the wait did not

timeout. If the MBOX_WAKE flag is not set, then do not free the resources

because it will be freed when firmware completes the mailbox at a later

time in its cmpl routine.

Also, increase the timeout from 30 to 60 seconds to accommodate boot

scripts requiring longer timeouts.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2024-46842 is recorded against 2 packages.

  • kernel (from 6.2.0 up to 6.10.10)
  • linux-kernel (fixed in 6.10.10)

Timeline and source

Published on 27 September 2024 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2024-09-27
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.2.0 6.10.10
linux-kernel — 6.10.10

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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