- Vulnerability/
- CVE-2024-53172
CVE-2024-53172: ubi: fastmap: Fix duplicate slab cache names while attaching
First published: Fri Dec 27 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ubi: fastmap: Fix duplicate slab cache names while attaching Since commit 4c39529663b9 ("slab: Warn on duplicate cache names when DEBUG_VM=y"), the duplicate slab cache names can be detected and a kernel WARNING is thrown out. In UBI fast attaching process, alloc_ai() could be invoked twice with the same slab cache name 'ubi_aeb_slab_cache', which will trigger following warning messages: kmem_cache of name 'ubi_aeb_slab_cache' already exists WARNING: CPU: 0 PID: 7519 at mm/slab_common.c:107 __kmem_cache_create_args+0x100/0x5f0 Modules linked in: ubi(+) nandsim [last unloaded: nandsim] CPU: 0 UID: 0 PID: 7519 Comm: modprobe Tainted: G 6.12.0-rc2 RIP: 0010:__kmem_cache_create_args+0x100/0x5f0 Call Trace: __kmem_cache_create_args+0x100/0x5f0 alloc_ai+0x295/0x3f0 [ubi] ubi_attach+0x3c3/0xcc0 [ubi] ubi_attach_mtd_dev+0x17cf/0x3fa0 [ubi] ubi_init+0x3fb/0x800 [ubi] do_init_module+0x265/0x7d0 __x64_sys_finit_module+0x7a/0xc0 The problem could be easily reproduced by loading UBI device by fastmap with CONFIG_DEBUG_VM=y. Fix it by using different slab names for alloc_ai() callers.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| debian/linux | <=5.10.223-1 | 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/04c0b0f37617099479c34e207c5550d081f585a6
- https://git.kernel.org/stable/c/3d8558135cd56a2a8052024be4073e160f36658c
- https://git.kernel.org/stable/c/612824dd0c9465ef365ace38b056c663d110956d
- https://git.kernel.org/stable/c/6afdcb285794e75d2c8995e3a44f523c176cc2de
- https://git.kernel.org/stable/c/7402c4bcb8a3f0d2ef4e687cd45c76be489cf509
- https://git.kernel.org/stable/c/871c148f8e0c32e505df9393ba4a303c3c3fe988
- https://git.kernel.org/stable/c/b1ee0aa4945c49cbbd779da81040fcec4de80fd1
- https://git.kernel.org/stable/c/bcddf52b7a17adcebc768d26f4e27cf79adb424c
- https://git.kernel.org/stable/c/ef52b7191ac41e68b1bf070d00c5b04ed16e4920
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-53172
- https://nvd.nist.gov/vuln/detail/CVE-2024-53172
- https://launchpad.net/bugs/cve/CVE-2024-53172
- https://security-tracker.debian.org/tracker/CVE-2024-53172
- https://ubuntu.com/security/CVE-2024-53172
- https://git.kernel.org/linus/bcddf52b7a17adcebc768d26f4e27cf79adb424c
Frequently Asked Questions
What is the severity of CVE-2024-53172?
The severity of CVE-2024-53172 has not been explicitly rated, but it addresses a vulnerability related to duplicate slab cache names which could lead to kernel warnings.
How do I fix CVE-2024-53172?
To fix CVE-2024-53172, update your Linux kernel to versions 6.1.123-1, 6.1.128-1, 6.12.12-1, or 6.12.15-1, or ensure you are not using versions earlier than 5.10.226-1.
Which versions of the Linux kernel are affected by CVE-2024-53172?
CVE-2024-53172 affects all Linux kernel versions up to 5.10.226-1 and those before the latest patches.
What type of vulnerability is CVE-2024-53172?
CVE-2024-53172 is a kernel vulnerability specifically related to memory management concerning slab cache names.
Is there any potential risk associated with CVE-2024-53172?
Yes, the risk includes kernel warnings that may affect system stability and performance due to the handling of duplicate slab cache names.
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