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ubuntucveUbuntu.comUB:CVE-2024-43816
HistoryAug 17, 2024 - 12:00 a.m.

CVE-2024-43816

2024-08-1700:00:00
ubuntu.com
ubuntu.com
1
linux kernel
vulnerability
lpfc_prep_embed_io
memory out of bounds
pointer dereference
big endian
little endian
sgl
sli4_sge_le
le32_to_cpu

AI Score

7.2

Confidence

Low

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

7.2

Confidence

Low