ghsa-xxcq-q4px-9ggw
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
slub/kunit: fix a WARNING due to unwrapped __kmalloc_cache_noprof
'modprobe slub_kunit' will have a warning as shown below. The root cause is that __kmalloc_cache_noprof was directly used, which resulted in no alloc_tag being allocated. This caused current->alloc_tag to be null, leading to a warning in alloc_tag_add_check.
Let's add an alloc_hook layer to __kmalloc_cache_noprof specifically within lib/slub_kunit.c, which is the only user of this internal slub function outside kmalloc implementation itself.
[58162.947016] WARNING: CPU: 2 PID: 6210 at ./include/linux/alloc_tag.h:125 alloc_tagging_slab_alloc_hook+0x268/0x27c [58162.957721] Call trace: [58162.957919] alloc_tagging_slab_alloc_hook+0x268/0x27c [58162.958286] __kmalloc_cache_noprof+0x14c/0x344 [58162.958615] test_kmalloc_redzone_access+0x50/0x10c [slub_kunit] [58162.959045] kunit_try_run_case+0x74/0x184 [kunit] [58162.959401] kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit] [58162.959841] kthread+0x10c/0x118 [58162.960093] ret_from_fork+0x10/0x20 [58162.960363] ---[ end trace 0000000000000000 ]---
{
"affected": [],
"aliases": [
"CVE-2024-53049"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-19T18:15:25Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nslub/kunit: fix a WARNING due to unwrapped __kmalloc_cache_noprof\n\n\u0027modprobe slub_kunit\u0027 will have a warning as shown below. The root cause\nis that __kmalloc_cache_noprof was directly used, which resulted in no\nalloc_tag being allocated. This caused current-\u003ealloc_tag to be null,\nleading to a warning in alloc_tag_add_check.\n\nLet\u0027s add an alloc_hook layer to __kmalloc_cache_noprof specifically\nwithin lib/slub_kunit.c, which is the only user of this internal slub\nfunction outside kmalloc implementation itself.\n\n[58162.947016] WARNING: CPU: 2 PID: 6210 at\n./include/linux/alloc_tag.h:125 alloc_tagging_slab_alloc_hook+0x268/0x27c\n[58162.957721] Call trace:\n[58162.957919] alloc_tagging_slab_alloc_hook+0x268/0x27c\n[58162.958286] __kmalloc_cache_noprof+0x14c/0x344\n[58162.958615] test_kmalloc_redzone_access+0x50/0x10c [slub_kunit]\n[58162.959045] kunit_try_run_case+0x74/0x184 [kunit]\n[58162.959401] kunit_generic_run_threadfn_adapter+0x2c/0x4c [kunit]\n[58162.959841] kthread+0x10c/0x118\n[58162.960093] ret_from_fork+0x10/0x20\n[58162.960363] ---[ end trace 0000000000000000 ]---",
"id": "GHSA-xxcq-q4px-9ggw",
"modified": "2024-11-22T21:32:12Z",
"published": "2024-11-19T18:31:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53049"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2b059d0d1e624adc6e69a754bc48057f8bf459dc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/79aea7dfd98fbbf282d1408fc21849fc9a677768"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
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