CVE-2024-41082 Affecting kernel-default-livepatch package, versions <5.14.21-150500.55.83.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-SLES155-KERNELDEFAULTLIVEPATCH-8173864
  • published10 Oct 2024
  • disclosed9 Oct 2024

Introduced: 9 Oct 2024

CVE-2024-41082  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-default-livepatch to version 5.14.21-150500.55.83.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-livepatch package and not the kernel-default-livepatch package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

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

nvme-fabrics: use reserved tag for reg read/write command

In some scenarios, if too many commands are issued by nvme command in the same time by user tasks, this may exhaust all tags of admin_q. If a reset (nvme reset or IO timeout) occurs before these commands finish, reconnect routine may fail to update nvme regs due to insufficient tags, which will cause kernel hang forever. In order to workaround this issue, maybe we can let reg_read32()/reg_read64()/reg_write32() use reserved tags. This maybe safe for nvmf:

  1. For the disable ctrl path, we will not issue connect command
  2. For the enable ctrl / fw activate path, since connect and reg_xx() are called serially.

So the reserved tags may still be enough while reg_xx() use reserved tags.

CVSS Scores

version 3.1