CVE - CVE-2024-53174

CVE-ID
CVE-2024-53174	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/02999e135b013d85c6df738746e8e24699befee4 URL:https://git.kernel.org/stable/c/02999e135b013d85c6df738746e8e24699befee4 MISC:https://git.kernel.org/stable/c/068c0b50f3f700b94f78850834cd91ae3b34c2c1 URL:https://git.kernel.org/stable/c/068c0b50f3f700b94f78850834cd91ae3b34c2c1 MISC:https://git.kernel.org/stable/c/2862eee078a4d2d1f584e7f24fa50dddfa5f3471 URL:https://git.kernel.org/stable/c/2862eee078a4d2d1f584e7f24fa50dddfa5f3471 MISC:https://git.kernel.org/stable/c/acfaf37888e0f0732fb6a50ff093dce6d99994d0 URL:https://git.kernel.org/stable/c/acfaf37888e0f0732fb6a50ff093dce6d99994d0 MISC:https://git.kernel.org/stable/c/c7dac3af57e38b2054f990e573256d90bf887958 URL:https://git.kernel.org/stable/c/c7dac3af57e38b2054f990e573256d90bf887958 MISC:https://git.kernel.org/stable/c/d882e2b7fad3f5e5fac66184a347f408813f654a URL:https://git.kernel.org/stable/c/d882e2b7fad3f5e5fac66184a347f408813f654a MISC:https://git.kernel.org/stable/c/e9be26735d055c42543a4d047a769cc6d0fb1504 URL:https://git.kernel.org/stable/c/e9be26735d055c42543a4d047a769cc6d0fb1504 MISC:https://git.kernel.org/stable/c/ec305f303bf070b4f6896b7a76009f702956d402 URL:https://git.kernel.org/stable/c/ec305f303bf070b4f6896b7a76009f702956d402
Assigning CNA
kernel.org
Date Record Created
20241119	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241119)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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