CVE-2024-27392
Assigner: Linux
Published: 2024-05-01T13:05:20.117Z
State: PUBLISHED
descriptions: value: In the Linux kernel, the following vulnerability has been resolved:

nvme: host: fix double-free of struct nvme_id_ns in ns_update_nuse()

When nvme_identify_ns() fails, it frees the pointer to the struct
nvme_id_ns before it returns. However, ns_update_nuse() calls kfree()
for the pointer even when nvme_identify_ns() fails. This results in
KASAN double-free, which was observed with blktests nvme/045 with
proposed patches [1] on the kernel v6.8-rc7. Fix the double-free by
skipping kfree() when nvme_identify_ns() fails.
affected: product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: a1a825ab6a60
lessThan: 534f9dc7fe49
status: affected
versionType: git
version: a1a825ab6a60
lessThan: 8d0d2447394b
status: affected
versionType: git
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 6.8
status: affected
version: 0
lessThan: 6.8
status: unaffected
versionType: custom
version: 6.8.2
lessThanOrEqual: 6.8.*
status: unaffected
versionType: custom
version: 6.9
lessThanOrEqual: *
status: unaffected
versionType: original_commit_for_fix
title: nvme: host: fix double-free of struct nvme_id_ns in ns_update_nuse()
x_generator: engine: bippy-d175d3acf727