CVE-2024-39496 — Use After Free in Linux
Severity
7.8HIGHNVD
OSV5.5
EPSS
0.0%
top 96.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJul 12
Latest updateOct 31
Description
In the Linux kernel, the following vulnerability has been resolved:
btrfs: zoned: fix use-after-free due to race with dev replace
While loading a zone's info during creation of a block group, we can race
with a device replace operation and then trigger a use-after-free on the
device that was just replaced (source device of the replace operation).
This happens because at btrfs_load_zone_info() we extract a device from
the chunk map into a local variable and then use the device while not
under …
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages11 packages
Also affects: Debian Linux 11.0