CVE-2023-52566
Linux Nilfs2 Use After Free Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential use after free in nilfs_gccache_submit_read_data() In nilfs_gccache_submit_read_data(), brelse(bh) is called to drop the reference count of bh when the call to nilfs_dat_translate() fails. If the reference count hits 0 and its owner page gets unlocked, bh may be freed. However, bh->b_page is dereferenced to put the page after that, which may result in a use-after-free bug. This patch moves the release operation after unlocking and putting the page. NOTE: The function in question is only called in GC, and in combination with current userland tools, address translation using DAT does not occur in that function, so the code path that causes this issue will not be executed. However, it is possible to run that code path by intentionally modifying the userland GC library or by calling the GC ioctl directly. [[email protected]: NOTE added to the commit log]
INFO
Published Date :
March 2, 2024, 10:15 p.m.
Last Modified :
April 8, 2025, 3:08 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-52566.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2023-52566 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-52566 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Apr. 08, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.198 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.5.6 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.56 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.30 up to (excluding) 4.14.327 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.296 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.258 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.134 Added Reference Type CVE: https://git.kernel.org/stable/c/193b5a1c6c67c36b430989dc063fe7ea4e200a33 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/193b5a1c6c67c36b430989dc063fe7ea4e200a33 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/28df4646ad8b433340772edc90ca709cdefc53e2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/28df4646ad8b433340772edc90ca709cdefc53e2 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/3936e8714907cd55e37c7cc50e50229e4a9042e8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3936e8714907cd55e37c7cc50e50229e4a9042e8 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/7130a87ca32396eb9bf48b71a2d42259ae44c6c7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7130a87ca32396eb9bf48b71a2d42259ae44c6c7 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/7ee29facd8a9c5a26079148e36bcf07141b3a6bc Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7ee29facd8a9c5a26079148e36bcf07141b3a6bc Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/980663f1d189eedafd18d80053d9cf3e2ceb5c8c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/980663f1d189eedafd18d80053d9cf3e2ceb5c8c Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/bb61224f6abc8e71bfdf06d7c984e23460875f5b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/bb61224f6abc8e71bfdf06d7c984e23460875f5b Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/fb1084e63ee56958b0a56e17a50a4fd86445b9c1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/fb1084e63ee56958b0a56e17a50a4fd86445b9c1 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/193b5a1c6c67c36b430989dc063fe7ea4e200a33 Added Reference https://git.kernel.org/stable/c/28df4646ad8b433340772edc90ca709cdefc53e2 Added Reference https://git.kernel.org/stable/c/3936e8714907cd55e37c7cc50e50229e4a9042e8 Added Reference https://git.kernel.org/stable/c/7130a87ca32396eb9bf48b71a2d42259ae44c6c7 Added Reference https://git.kernel.org/stable/c/7ee29facd8a9c5a26079148e36bcf07141b3a6bc Added Reference https://git.kernel.org/stable/c/980663f1d189eedafd18d80053d9cf3e2ceb5c8c Added Reference https://git.kernel.org/stable/c/bb61224f6abc8e71bfdf06d7c984e23460875f5b Added Reference https://git.kernel.org/stable/c/fb1084e63ee56958b0a56e17a50a4fd86445b9c1 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Nov. 06, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-416 Added CVSS V3.1 CISA-ADP AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 02, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential use after free in nilfs_gccache_submit_read_data() In nilfs_gccache_submit_read_data(), brelse(bh) is called to drop the reference count of bh when the call to nilfs_dat_translate() fails. If the reference count hits 0 and its owner page gets unlocked, bh may be freed. However, bh->b_page is dereferenced to put the page after that, which may result in a use-after-free bug. This patch moves the release operation after unlocking and putting the page. NOTE: The function in question is only called in GC, and in combination with current userland tools, address translation using DAT does not occur in that function, so the code path that causes this issue will not be executed. However, it is possible to run that code path by intentionally modifying the userland GC library or by calling the GC ioctl directly. [[email protected]: NOTE added to the commit log] Added Reference Linux https://git.kernel.org/stable/c/fb1084e63ee56958b0a56e17a50a4fd86445b9c1 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/bb61224f6abc8e71bfdf06d7c984e23460875f5b [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/193b5a1c6c67c36b430989dc063fe7ea4e200a33 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/7130a87ca32396eb9bf48b71a2d42259ae44c6c7 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/3936e8714907cd55e37c7cc50e50229e4a9042e8 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/980663f1d189eedafd18d80053d9cf3e2ceb5c8c [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/28df4646ad8b433340772edc90ca709cdefc53e2 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/7ee29facd8a9c5a26079148e36bcf07141b3a6bc [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-52566 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-52566
weaknesses.