CVE-2024-53172

ubi: fastmap: Fix duplicate slab cache names while attaching

State: Published
Severity: Not scored
Published: Dec 27, 2024
Updated: May 11, 2026
Reserved: Nov 19, 2024

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d2158f69a7d469c21c37f7028c18aa8c54707de3 to before ef52b7191ac41e68b1bf070d00c5b04ed16e4920Affected d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 871c148f8e0c32e505df9393ba4a303c3c3fe988Affected d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 04c0b0f37617099479c34e207c5550d081f585a6Affected d2158f69a7d469c21c37f7028c18aa8c54707de3 to before b1ee0aa4945c49cbbd779da81040fcec4de80fd1Affected d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 6afdcb285794e75d2c8995e3a44f523c176cc2deAffected d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 612824dd0c9465ef365ace38b056c663d110956dAffected d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 3d8558135cd56a2a8052024be4073e160f36658cAffected d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 7402c4bcb8a3f0d2ef4e687cd45c76be489cf509Affected d2158f69a7d469c21c37f7028c18aa8c54707de3 to before bcddf52b7a17adcebc768d26f4e27cf79adb424cAffected
LinuxLinux	4.1Affected before 4.1Not affected 4.19.325 through 4.19.Not affected 5.4.287 through 5.4.Not affected 5.10.231 through 5.10.Not affected 5.15.174 through 5.15.Not affected 6.1.120 through 6.1.Not affected 6.6.64 through 6.6.Not affected 6.11.11 through 6.11.Not affected 6.12.2 through 6.12.Not affected 6.13 and laterNot affected

Product

Versions

LinuxLinux

d2158f69a7d469c21c37f7028c18aa8c54707de3 to before ef52b7191ac41e68b1bf070d00c5b04ed16e4920Affected
d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 871c148f8e0c32e505df9393ba4a303c3c3fe988Affected
d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 04c0b0f37617099479c34e207c5550d081f585a6Affected
d2158f69a7d469c21c37f7028c18aa8c54707de3 to before b1ee0aa4945c49cbbd779da81040fcec4de80fd1Affected
d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 6afdcb285794e75d2c8995e3a44f523c176cc2deAffected
d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 612824dd0c9465ef365ace38b056c663d110956dAffected
d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 3d8558135cd56a2a8052024be4073e160f36658cAffected
d2158f69a7d469c21c37f7028c18aa8c54707de3 to before 7402c4bcb8a3f0d2ef4e687cd45c76be489cf509Affected
d2158f69a7d469c21c37f7028c18aa8c54707de3 to before bcddf52b7a17adcebc768d26f4e27cf79adb424cAffected

LinuxLinux

4.1Affected
before 4.1Not affected
4.19.325 through 4.19.*Not affected
5.4.287 through 5.4.*Not affected
5.10.231 through 5.10.*Not affected
5.15.174 through 5.15.*Not affected
6.1.120 through 6.1.*Not affected
6.6.64 through 6.6.*Not affected
6.11.11 through 6.11.*Not affected
6.12.2 through 6.12.*Not affected
6.13 and laterNot affected

References

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