cbcvebase.
CVE-2024-53174
published 2024-12-27

CVE-2024-53174: 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…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.25%
16.3th percentile
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: 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

Affected

26 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
debianlinux-6.1< linux 6.1.123-1 (bookworm)linux 6.1.123-1 (bookworm)
linuxlinux
linuxlinux>= d48cf356a13073853f19be6ca5ebbecfc2762ebe < e9be26735d055c42543a4d047a769cc6d0fb1504e9be26735d055c42543a4d047a769cc6d0fb1504
linuxlinux>= d48cf356a13073853f19be6ca5ebbecfc2762ebe < 02999e135b013d85c6df738746e8e24699befee402999e135b013d85c6df738746e8e24699befee4
linuxlinux>= d48cf356a13073853f19be6ca5ebbecfc2762ebe < c7dac3af57e38b2054f990e573256d90bf887958c7dac3af57e38b2054f990e573256d90bf887958
linuxlinux>= d48cf356a13073853f19be6ca5ebbecfc2762ebe < 068c0b50f3f700b94f78850834cd91ae3b34c2c1068c0b50f3f700b94f78850834cd91ae3b34c2c1
linuxlinux>= d48cf356a13073853f19be6ca5ebbecfc2762ebe < acfaf37888e0f0732fb6a50ff093dce6d99994d0acfaf37888e0f0732fb6a50ff093dce6d99994d0
linuxlinux>= d48cf356a13073853f19be6ca5ebbecfc2762ebe < ec305f303bf070b4f6896b7a76009f702956d402ec305f303bf070b4f6896b7a76009f702956d402
linuxlinux>= d48cf356a13073853f19be6ca5ebbecfc2762ebe < d882e2b7fad3f5e5fac66184a347f408813f654ad882e2b7fad3f5e5fac66184a347f408813f654a
linuxlinux>= d48cf356a13073853f19be6ca5ebbecfc2762ebe < 2862eee078a4d2d1f584e7f24fa50dddfa5f34712862eee078a4d2d1f584e7f24fa50dddfa5f3471
linuxlinux_kernel< 5.4.2875.4.287
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.123-16.1.123-1
linuxlinux_kernel>= 0 < 6.12.3-16.12.3-1
linuxlinux_kernel>= 0 < 6.12.3-16.12.3-1
linuxlinux_kernel>= 0 < 5.4.0-211.2315.4.0-211.231
linuxlinux_kernel>= 0 < 5.15.0-135.1465.15.0-135.146
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 5.11 < 5.15.1745.15.174
linuxlinux_kernel>= 5.16 < 6.1.1206.1.120
linuxlinux_kernel>= 5.5 < 5.10.2315.10.231
linuxlinux_kernel>= 6.12 < 6.12.26.12.2
linuxlinux_kernel>= 6.2 < 6.6.646.6.64

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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