CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
AI Score
Confidence
Low
EPSS
Percentile
9.0%
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/dbgfs: fix ‘struct pid’ leaks in ‘dbgfs_target_ids_write()’
DAMON debugfs interface increases the reference counts of 'struct pid’s
for targets from the ‘target_ids’ file write callback
(‘dbgfs_target_ids_write()’), but decreases the counts only in DAMON
monitoring termination callback (‘dbgfs_before_terminate()’).
Therefore, when ‘target_ids’ file is repeatedly written without DAMON
monitoring start/termination, the reference count is not decreased and
therefore memory for the ‘struct pid’ cannot be freed. This commit
fixes this issue by decreasing the reference counts when ‘target_ids’ is
written.
Vendor | Product | Version | CPE |
---|---|---|---|
linux | linux_kernel | * | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"mm/damon/dbgfs.c"
],
"versions": [
{
"version": "4bc05954d007",
"lessThan": "ffe4a1ba1a82",
"status": "affected",
"versionType": "git"
},
{
"version": "4bc05954d007",
"lessThan": "ebb3f994dd92",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"mm/damon/dbgfs.c"
],
"versions": [
{
"version": "5.15",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.15",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.13",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.16",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]