CVE-2024-53172

ubi: fastmap: Fix duplicate slab cache names while attaching

MEDIUM

5.5

CVSS Score

Published: December 27, 2024 at 01:49 PM UTC

Updated: June 17, 2026 at 08:08 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.1 ≤ v < 4.19.3254.1 ≤ v < 5.10.2314.1 ≤ v < 5.15.1744.1 ≤ v < 5.4.2874.1 ≤ v < 6.1.1204.1 ≤ v < 6.11.114.1 ≤ v < 6.12.24.1 ≤ v < 6.134.1 ≤ v < 6.6.644.20 ≤ v < 5.4.2875.11 ≤ v < 5.15.1745.16 ≤ v < 6.1.1205.5 ≤ v < 5.10.2316.12 ≤ v < 6.12.26.2 ≤ v < 6.6.646.7 ≤ v < 6.11.114.1d2158f69a7d469c21c37f7028c18aa8c54707de3

Vendor states this is fixed in 04c0b0f37617099479c34e207c5550d081f585a6 (fixed)

Vendor states this is fixed in 3d8558135cd56a2a8052024be4073e160f36658c (fixed)

Vendor states this is fixed in 612824dd0c9465ef365ace38b056c663d110956d (fixed)

Vendor states this is fixed in 6afdcb285794e75d2c8995e3a44f523c176cc2de (fixed)

Vendor states this is fixed in 7402c4bcb8a3f0d2ef4e687cd45c76be489cf509 (fixed)

Vendor states this is fixed in 871c148f8e0c32e505df9393ba4a303c3c3fe988 (fixed)

Vendor states this is fixed in b1ee0aa4945c49cbbd779da81040fcec4de80fd1 (fixed)

Vendor states this is fixed in bcddf52b7a17adcebc768d26f4e27cf79adb424c (fixed)

Vendor states this is fixed in ef52b7191ac41e68b1bf070d00c5b04ed16e4920 (fixed)

Vendor states this is fixed in 4.1 (unaffected)

Vendor states this is fixed in 4.19.325 (unaffected)

Vendor states this is fixed in 5.10.231 (unaffected)