ghsa-jrx3-xfh8-49wm
Vulnerability from github
Published
2024-12-27 15:31
Modified
2024-12-27 15:31
Details

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.

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{
   affected: [],
   aliases: [
      "CVE-2024-53172",
   ],
   database_specific: {
      cwe_ids: [],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-12-27T14:15:24Z",
      severity: null,
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\nubi: fastmap: Fix duplicate slab cache names while attaching\n\nSince commit 4c39529663b9 (\"slab: Warn on duplicate cache names when\nDEBUG_VM=y\"), the duplicate slab cache names can be detected and a\nkernel WARNING is thrown out.\nIn UBI fast attaching process, alloc_ai() could be invoked twice\nwith the same slab cache name 'ubi_aeb_slab_cache', which will trigger\nfollowing warning messages:\n kmem_cache of name 'ubi_aeb_slab_cache' already exists\n WARNING: CPU: 0 PID: 7519 at mm/slab_common.c:107\n          __kmem_cache_create_args+0x100/0x5f0\n Modules linked in: ubi(+) nandsim [last unloaded: nandsim]\n CPU: 0 UID: 0 PID: 7519 Comm: modprobe Tainted: G 6.12.0-rc2\n RIP: 0010:__kmem_cache_create_args+0x100/0x5f0\n Call Trace:\n   __kmem_cache_create_args+0x100/0x5f0\n   alloc_ai+0x295/0x3f0 [ubi]\n   ubi_attach+0x3c3/0xcc0 [ubi]\n   ubi_attach_mtd_dev+0x17cf/0x3fa0 [ubi]\n   ubi_init+0x3fb/0x800 [ubi]\n   do_init_module+0x265/0x7d0\n   __x64_sys_finit_module+0x7a/0xc0\n\nThe problem could be easily reproduced by loading UBI device by fastmap\nwith CONFIG_DEBUG_VM=y.\nFix it by using different slab names for alloc_ai() callers.",
   id: "GHSA-jrx3-xfh8-49wm",
   modified: "2024-12-27T15:31:50Z",
   published: "2024-12-27T15:31:50Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-53172",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/04c0b0f37617099479c34e207c5550d081f585a6",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/3d8558135cd56a2a8052024be4073e160f36658c",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/612824dd0c9465ef365ace38b056c663d110956d",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/6afdcb285794e75d2c8995e3a44f523c176cc2de",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/7402c4bcb8a3f0d2ef4e687cd45c76be489cf509",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/871c148f8e0c32e505df9393ba4a303c3c3fe988",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/b1ee0aa4945c49cbbd779da81040fcec4de80fd1",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/bcddf52b7a17adcebc768d26f4e27cf79adb424c",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/ef52b7191ac41e68b1bf070d00c5b04ed16e4920",
      },
   ],
   schema_version: "1.4.0",
   severity: [],
}


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