CVE-2024-53174
Linux Kernel SUNRPC RCU Use-After-Free Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: make sure cache entry active before cache_show The function `c_show` was called with protection from RCU. This only ensures that `cp` will not be freed. Therefore, the reference count for `cp` can drop to zero, which will trigger a refcount use-after-free warning when `cache_get` is called. To resolve this issue, use `cache_get_rcu` to ensure that `cp` remains active. ------------[ cut here ]------------ refcount_t: addition on 0; use-after-free. WARNING: CPU: 7 PID: 822 at lib/refcount.c:25 refcount_warn_saturate+0xb1/0x120 CPU: 7 UID: 0 PID: 822 Comm: cat Not tainted 6.12.0-rc3+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014 RIP: 0010:refcount_warn_saturate+0xb1/0x120 Call Trace: <TASK> c_show+0x2fc/0x380 [sunrpc] seq_read_iter+0x589/0x770 seq_read+0x1e5/0x270 proc_reg_read+0xe1/0x140 vfs_read+0x125/0x530 ksys_read+0xc1/0x160 do_syscall_64+0x5f/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e
INFO
Published Date :
Dec. 27, 2024, 2:15 p.m.
Last Modified :
March 24, 2025, 5:26 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
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-2024-53174.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-53174 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-53174 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]
Mar. 24, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.12 up to (excluding) 6.12.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.11.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.120 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.174 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.231 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.64 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.4.287 Added Reference Type kernel.org: https://git.kernel.org/stable/c/02999e135b013d85c6df738746e8e24699befee4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/068c0b50f3f700b94f78850834cd91ae3b34c2c1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2862eee078a4d2d1f584e7f24fa50dddfa5f3471 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/acfaf37888e0f0732fb6a50ff093dce6d99994d0 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c7dac3af57e38b2054f990e573256d90bf887958 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d882e2b7fad3f5e5fac66184a347f408813f654a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e9be26735d055c42543a4d047a769cc6d0fb1504 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ec305f303bf070b4f6896b7a76009f702956d402 Types: Patch -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 11, 2025
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 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Dec. 27, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: SUNRPC: make sure cache entry active before cache_show The function `c_show` was called with protection from RCU. This only ensures that `cp` will not be freed. Therefore, the reference count for `cp` can drop to zero, which will trigger a refcount use-after-free warning when `cache_get` is called. To resolve this issue, use `cache_get_rcu` to ensure that `cp` remains active. ------------[ cut here ]------------ refcount_t: addition on 0; use-after-free. WARNING: CPU: 7 PID: 822 at lib/refcount.c:25 refcount_warn_saturate+0xb1/0x120 CPU: 7 UID: 0 PID: 822 Comm: cat Not tainted 6.12.0-rc3+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.1-2.fc37 04/01/2014 RIP: 0010:refcount_warn_saturate+0xb1/0x120 Call Trace: <TASK> c_show+0x2fc/0x380 [sunrpc] seq_read_iter+0x589/0x770 seq_read+0x1e5/0x270 proc_reg_read+0xe1/0x140 vfs_read+0x125/0x530 ksys_read+0xc1/0x160 do_syscall_64+0x5f/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e Added Reference https://git.kernel.org/stable/c/02999e135b013d85c6df738746e8e24699befee4 Added Reference https://git.kernel.org/stable/c/068c0b50f3f700b94f78850834cd91ae3b34c2c1 Added Reference https://git.kernel.org/stable/c/2862eee078a4d2d1f584e7f24fa50dddfa5f3471 Added Reference https://git.kernel.org/stable/c/acfaf37888e0f0732fb6a50ff093dce6d99994d0 Added Reference https://git.kernel.org/stable/c/c7dac3af57e38b2054f990e573256d90bf887958 Added Reference https://git.kernel.org/stable/c/d882e2b7fad3f5e5fac66184a347f408813f654a Added Reference https://git.kernel.org/stable/c/e9be26735d055c42543a4d047a769cc6d0fb1504 Added Reference https://git.kernel.org/stable/c/ec305f303bf070b4f6896b7a76009f702956d402
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-53174 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-2024-53174
weaknesses.