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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2024-43816
HistoryAug 17, 2024 - 10:15 a.m.

CVE-2024-43816

2024-08-1710:15:07
Debian Security Bug Tracker
security-tracker.debian.org
4
linux kernel
scsi
vulnerability
resolved
big endian
memory out of bounds
pointer dereference
fcp targets
lpfc_prep_embed_io
memcpy
little endian
sgl
crash

AI Score

7

Confidence

High

EPSS

0

Percentile

9.5%

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Revise lpfc_prep_embed_io routine with proper endian macro usages On big endian architectures, it is possible to run into a memory out of bounds pointer dereference when FCP targets are zoned. In lpfc_prep_embed_io, the memcpy(ptr, fcp_cmnd, sgl->sge_len) is referencing a little endian formatted sgl->sge_len value. So, the memcpy can cause big endian systems to crash. Redefine the *sgl ptr as a struct sli4_sge_le to make it clear that we are referring to a little endian formatted data structure. And, update the routine with proper le32_to_cpu macro usages.

AI Score

7

Confidence

High

EPSS

0

Percentile

9.5%