CVE-2026-64245
Detail
Description
In the Linux kernel, the following vulnerability has been resolved:
fbdev: modedb: fix a possible UAF in fb_find_mode()
If mode_option is NULL, it is assigned from mode_option_buf:
if (!mode_option) {
fb_get_options(NULL, &mode_option_buf);
mode_option = mode_option_buf;
}
Later, name is assigned from mode_option:
const char *name = mode_option;
However, mode_option_buf is freed before name is no longer used:
kfree(mode_option_buf);
while name is still accessed by:
if ((name_matches(db[i], name, namelen) ||
Since name aliases mode_option_buf, this may result in a
use-after-free.
Fix this by extending the lifetime of mode_option_buf until the end of the
function by using scope-based resource management for cleanup.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-416
Use After Free
NIST
Change History
4 change records found show changes
Initial Analysis by NIST
8/17/2026 3:23:52 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-416
Added
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.95
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.38
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.1.3
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.4 up to (excluding) 6.6.144
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/13b6f0cdd5cd5e60f682ec43134ab0e2024bd356 Types: Patch
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/4d418cf8daf57e454b4d855bf9b2419fd8e6a540 Types: Patch
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/85b6256469cebdac395e7447147e06b2e151014f Types: Patch
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/c7dc382439f7b019e207055b52e9cec051d42fa9 Types: Patch
Added
Reference Type
kernel.org: https://git.kernel.org/stable/c/f906347d75c7fc377041c6d3c535d0f08846aada Types: Patch
CVE Modified by kernel.org
8/17/2026 1:17:22 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"c7dc382439f7b019e207055b52e9cec051d42fa9","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"f906347d75c7fc377041c6d3c535d0f08846aada","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"4d418cf8daf57e454b4d855bf9b2419fd8e6a540","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"13b6f0cdd5cd5e60f682ec43134ab0e2024bd356","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"85b6256469cebdac395e7447147e06b2e151014f","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.4","status":"affected"},{"version":"0","lessThan":"6.4","versionType":"semver","status":"unaffected"},{"version":"6.6.144","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.95","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.38","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.3","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"c7dc382439f7b019e207055b52e9cec051d42fa9","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"f906347d75c7fc377041c6d3c535d0f08846aada","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"4d418cf8daf57e454b4d855bf9b2419fd8e6a540","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"13b6f0cdd5cd5e60f682ec43134ab0e2024bd356","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"85b6256469cebdac395e7447147e06b2e151014f","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.4","status":"affected"},{"version":"0","lessThan":"6.4","versionType":"semver","status":"unaffected"},{"version":"6.6.144","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.95","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.38","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.3","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
7/27/2026 1:16:37 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c7dc382439f7b019e207055b52e9cec051d42fa9","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"f906347d75c7fc377041c6d3c535d0f08846aada","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"4d418cf8daf57e454b4d855bf9b2419fd8e6a540","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"13b6f0cdd5cd5e60f682ec43134ab0e2024bd356","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"85b6256469cebdac395e7447147e06b2e151014f","versionType":"git","status":"affected"},{"version":"0","lessThan":"6.6.144","versionType":"semver","status":"affected"},{"version":"0","lessThan":"6.12.95","versionType":"semver","status":"affected"},{"version":"0","lessThan":"6.18.38","versionType":"semver","status":"affected"},{"version":"0","lessThan":"7.1.3","versionType":"semver","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.6.144","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.95","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.38","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.3","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"c7dc382439f7b019e207055b52e9cec051d42fa9","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"f906347d75c7fc377041c6d3c535d0f08846aada","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"4d418cf8daf57e454b4d855bf9b2419fd8e6a540","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"13b6f0cdd5cd5e60f682ec43134ab0e2024bd356","versionType":"git","status":"affected"},{"version":"089d924d03d5c17b05d02992f57671ccfba1c4f0","lessThan":"85b6256469cebdac395e7447147e06b2e151014f","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.4","status":"affected"},{"version":"0","lessThan":"6.4","versionType":"semver","status":"unaffected"},{"version":"6.6.144","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.95","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.38","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.3","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
New CVE Received from kernel.org
7/24/2026 12:16:53 PM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
fbdev: modedb: fix a possible UAF in fb_find_mode()
If mode_option is NULL, it is assigned from mode_option_buf:
if (!mode_option) {
fb_get_options(NULL, &mode_option_buf);
mode_option = mode_option_buf;
}
Later, name is assigned from mode_option:
const char *name = mode_option;
However, mode_option_buf is freed before name is no longer used:
kfree(mode_option_buf);
while name is still accessed by:
if ((name_matches(db[i], name, namelen) ||
Since name aliases mode_option_buf, this may result in a
use-after-free.
Fix this by extending the lifetime of mode_option_buf until the end of the
function by using scope-based resource management for cleanup.
Added
Reference
https://git.kernel.org/stable/c/13b6f0cdd5cd5e60f682ec43134ab0e2024bd356
Added
Reference
https://git.kernel.org/stable/c/4d418cf8daf57e454b4d855bf9b2419fd8e6a540
Added
Reference
https://git.kernel.org/stable/c/85b6256469cebdac395e7447147e06b2e151014f
Added
Reference
https://git.kernel.org/stable/c/c7dc382439f7b019e207055b52e9cec051d42fa9
Added
Reference
https://git.kernel.org/stable/c/f906347d75c7fc377041c6d3c535d0f08846aada
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"c7dc382439f7b019e207055b52e9cec051d42fa9","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"f906347d75c7fc377041c6d3c535d0f08846aada","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"4d418cf8daf57e454b4d855bf9b2419fd8e6a540","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"13b6f0cdd5cd5e60f682ec43134ab0e2024bd356","versionType":"git","status":"affected"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"85b6256469cebdac395e7447147e06b2e151014f","versionType":"git","status":"affected"},{"version":"0","lessThan":"6.6.144","versionType":"semver","status":"affected"},{"version":"0","lessThan":"6.12.95","versionType":"semver","status":"affected"},{"version":"0","lessThan":"6.18.38","versionType":"semver","status":"affected"},{"version":"0","lessThan":"7.1.3","versionType":"semver","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/video/fbdev/core/modedb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"6.6.144","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.95","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.38","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.3","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-64245 NVD
Published Date: 07/24/2026 NVD
Last Modified: 08/17/2026
Source: kernel.org
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