CVE-2024-53174

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Source
https://cve.org/CVERecord?id=CVE-2024-53174
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53174.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-53174
Downstream
Related
Published
2024-12-27T13:49:18.892Z
Modified
2026-03-20T12:40:47.672860Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
SUNRPC: make sure cache entry active before cache_show
Details

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 ]------------ refcountt: addition on 0; use-after-free. WARNING: CPU: 7 PID: 822 at lib/refcount.c:25 refcountwarnsaturate+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:refcountwarn_saturate+0xb1/0x120

Call Trace: <TASK> cshow+0x2fc/0x380 [sunrpc] seqreaditer+0x589/0x770 seqread+0x1e5/0x270 procregread+0xe1/0x140 vfsread+0x125/0x530 ksysread+0xc1/0x160 dosyscall64+0x5f/0x170 entrySYSCALL64afterhwframe+0x76/0x7e

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53174.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
d48cf356a13073853f19be6ca5ebbecfc2762ebe
Fixed
e9be26735d055c42543a4d047a769cc6d0fb1504
Fixed
02999e135b013d85c6df738746e8e24699befee4
Fixed
c7dac3af57e38b2054f990e573256d90bf887958
Fixed
068c0b50f3f700b94f78850834cd91ae3b34c2c1
Fixed
acfaf37888e0f0732fb6a50ff093dce6d99994d0
Fixed
ec305f303bf070b4f6896b7a76009f702956d402
Fixed
d882e2b7fad3f5e5fac66184a347f408813f654a
Fixed
2862eee078a4d2d1f584e7f24fa50dddfa5f3471

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53174.json"