{
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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-48649",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-25T13:44:28.316Z",
        "datePublished": "2024-04-28T13:00:33.390Z",
        "dateUpdated": "2026-05-11T18:44:27.700Z"
    },
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                "shortName": "Linux",
                "dateUpdated": "2026-05-11T18:44:27.700Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/slab_common: fix possible double free of kmem_cache\n\nWhen doing slub_debug test, kfence's 'test_memcache_typesafe_by_rcu'\nkunit test case cause a use-after-free error:\n\n  BUG: KASAN: use-after-free in kobject_del+0x14/0x30\n  Read of size 8 at addr ffff888007679090 by task kunit_try_catch/261\n\n  CPU: 1 PID: 261 Comm: kunit_try_catch Tainted: G    B            N 6.0.0-rc5-next-20220916 #17\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n  Call Trace:\n   <TASK>\n   dump_stack_lvl+0x34/0x48\n   print_address_description.constprop.0+0x87/0x2a5\n   print_report+0x103/0x1ed\n   kasan_report+0xb7/0x140\n   kobject_del+0x14/0x30\n   kmem_cache_destroy+0x130/0x170\n   test_exit+0x1a/0x30\n   kunit_try_run_case+0xad/0xc0\n   kunit_generic_run_threadfn_adapter+0x26/0x50\n   kthread+0x17b/0x1b0\n   </TASK>\n\nThe cause is inside kmem_cache_destroy():\n\nkmem_cache_destroy\n    acquire lock/mutex\n    shutdown_cache\n        schedule_work(kmem_cache_release) (if RCU flag set)\n    release lock/mutex\n    kmem_cache_release (if RCU flag not set)\n\nIn some certain timing, the scheduled work could be run before\nthe next RCU flag checking, which can then get a wrong value\nand lead to double kmem_cache_release().\n\nFix it by caching the RCU flag inside protected area, just like 'refcnt'"
                }
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            "affected": [
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "mm/slab_common.c"
                    ],
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                            "lessThan": "c673c6ceac53fb2e631c9fbbd79957099a08927f",
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                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "mm/slab_common.c"
                    ],
                    "versions": [
                        {
                            "version": "5.19.8",
                            "lessThan": "5.19.12",
                            "status": "affected",
                            "versionType": "semver"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            "references": [
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                    "url": "https://git.kernel.org/stable/c/c673c6ceac53fb2e631c9fbbd79957099a08927f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d71608a877362becdc94191f190902fac1e64d35"
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            ],
            "title": "mm/slab_common: fix possible double free of kmem_cache",
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