CVE-2023-52922 (GCVE-0-2023-52922)

Vulnerability from cvelistv5 – Published: 2024-11-28 15:09 – Updated: 2026-05-11 19:35
VLAI?
Title
can: bcm: Fix UAF in bcm_proc_show()
Summary
In the Linux kernel, the following vulnerability has been resolved: can: bcm: Fix UAF in bcm_proc_show() BUG: KASAN: slab-use-after-free in bcm_proc_show+0x969/0xa80 Read of size 8 at addr ffff888155846230 by task cat/7862 CPU: 1 PID: 7862 Comm: cat Not tainted 6.5.0-rc1-00153-gc8746099c197 #230 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0xd5/0x150 print_report+0xc1/0x5e0 kasan_report+0xba/0xf0 bcm_proc_show+0x969/0xa80 seq_read_iter+0x4f6/0x1260 seq_read+0x165/0x210 proc_reg_read+0x227/0x300 vfs_read+0x1d5/0x8d0 ksys_read+0x11e/0x240 do_syscall_64+0x35/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Allocated by task 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x9e/0xa0 bcm_sendmsg+0x264b/0x44e0 sock_sendmsg+0xda/0x180 ____sys_sendmsg+0x735/0x920 ___sys_sendmsg+0x11d/0x1b0 __sys_sendmsg+0xfa/0x1d0 do_syscall_64+0x35/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x27/0x40 ____kasan_slab_free+0x161/0x1c0 slab_free_freelist_hook+0x119/0x220 __kmem_cache_free+0xb4/0x2e0 rcu_core+0x809/0x1bd0 bcm_op is freed before procfs entry be removed in bcm_release(), this lead to bcm_proc_show() may read the freed bcm_op.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 11b8e27ed448baa385d90154a141466bd5e92f18 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 9b58d36d0c1ea29a9571e0222a9c29df0ccfb7ff (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 9533dbfac0ff7edd77a5fa2c24974b1d66c8b0a6 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < cf254b4f68e480e73dab055014e002b77aed30ed (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 3c3941bb1eb53abe7d640ffee5c4d6b559829ab3 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 995f47d76647708ec26c6e388663ad4f3f264787 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < dfd0aa26e9a07f2ce546ccf8304ead6a2914e8a7 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 55c3b96074f3f9b0aee19bf93cd71af7516582bb (git)
Create a notification for this product.
Linux Linux Affected: 2.6.25
Unaffected: 0 , < 2.6.25 (semver)
Unaffected: 4.14.322 , ≤ 4.14.* (semver)
Unaffected: 4.19.291 , ≤ 4.19.* (semver)
Unaffected: 5.4.251 , ≤ 5.4.* (semver)
Unaffected: 5.10.188 , ≤ 5.10.* (semver)
Unaffected: 5.15.123 , ≤ 5.15.* (semver)
Unaffected: 6.1.42 , ≤ 6.1.* (semver)
Unaffected: 6.4.7 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52922",
    "datePublished": "2024-11-28T15:09:51.360Z",
    "dateReserved": "2024-08-21T06:07:11.018Z",
    "dateUpdated": "2026-05-11T19:35:40.844Z",
    "state": "PUBLISHED"
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  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-52922",
      "date": "2026-05-21",
      "epss": "0.00014",
      "percentile": "0.02691"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-52922\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-28T15:15:17.260\",\"lastModified\":\"2025-06-13T20:15:22.450\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: bcm: Fix UAF in bcm_proc_show()\\n\\nBUG: KASAN: slab-use-after-free in bcm_proc_show+0x969/0xa80\\nRead of size 8 at addr ffff888155846230 by task cat/7862\\n\\nCPU: 1 PID: 7862 Comm: cat Not tainted 6.5.0-rc1-00153-gc8746099c197 #230\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\\nCall Trace:\\n \u003cTASK\u003e\\n dump_stack_lvl+0xd5/0x150\\n print_report+0xc1/0x5e0\\n kasan_report+0xba/0xf0\\n bcm_proc_show+0x969/0xa80\\n seq_read_iter+0x4f6/0x1260\\n seq_read+0x165/0x210\\n proc_reg_read+0x227/0x300\\n vfs_read+0x1d5/0x8d0\\n ksys_read+0x11e/0x240\\n do_syscall_64+0x35/0xb0\\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nAllocated by task 7846:\\n kasan_save_stack+0x1e/0x40\\n kasan_set_track+0x21/0x30\\n __kasan_kmalloc+0x9e/0xa0\\n bcm_sendmsg+0x264b/0x44e0\\n sock_sendmsg+0xda/0x180\\n ____sys_sendmsg+0x735/0x920\\n ___sys_sendmsg+0x11d/0x1b0\\n __sys_sendmsg+0xfa/0x1d0\\n do_syscall_64+0x35/0xb0\\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nFreed by task 7846:\\n kasan_save_stack+0x1e/0x40\\n kasan_set_track+0x21/0x30\\n kasan_save_free_info+0x27/0x40\\n ____kasan_slab_free+0x161/0x1c0\\n slab_free_freelist_hook+0x119/0x220\\n __kmem_cache_free+0xb4/0x2e0\\n rcu_core+0x809/0x1bd0\\n\\nbcm_op is freed before procfs entry be removed in bcm_release(),\\nthis lead to bcm_proc_show() may read the freed bcm_op.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: bcm: Fix UAF en bcm_proc_show() BUG: KASAN: slab-use-after-free en bcm_proc_show+0x969/0xa80 Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff888155846230 por la tarea cat/7862 CPU: 1 PID: 7862 Comm: cat No contaminado 6.5.0-rc1-00153-gc8746099c197 #230 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Seguimiento de llamadas:  dump_stack_lvl+0xd5/0x150 print_report+0xc1/0x5e0 Asignado por la tarea 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 __kasan_kmalloc+0x9e/0xa0 bcm_sendmsg+0x264b/0x44e0 sock_sendmsg+0xda/0x180 ____sys_sendmsg+0x735/0x920 ___sys_sendmsg+0x11d/0x1b0 __sys_sendmsg+0xfa/0x1d0 do_syscall_64+0x35/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Liberado por la tarea 7846: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_save_free_info+0x27/0x40 ____kasan_slab_free+0x161/0x1c0 slab_free_freelist_hook+0x119/0x220 __kmem_cache_free+0xb4/0x2e0 rcu_core+0x809/0x1bd0 bcm_op se libera antes de que se elimine la entrada procfs en bcm_release(), esto lleva a que bcm_proc_show() pueda leer el bcm_op liberado.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.25\",\"versionEndExcluding\":\"4.14.322\",\"matchCriteriaId\":\"115EB87B-910D-4A3D-B8DF-5F281A7E12A0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.291\",\"matchCriteriaId\":\"D2D2CA9F-4CC4-4AF5-8C6D-E58415AB782E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.251\",\"matchCriteriaId\":\"7FA663C4-CA72-4B5A-8592-7354D978F58E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.188\",\"matchCriteriaId\":\"43CAE50A-4A6C-488E-813C-F8DB77C13C8B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.123\",\"matchCriteriaId\":\"372C0BAA-44F5-4829-A7B0-E4924B682DA4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.42\",\"matchCriteriaId\":\"6E769E6A-7EEF-4FA8-BF41-6CA1CE537361\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.4.7\",\"matchCriteriaId\":\"60A1A1ED-EA6C-42F6-80D3-3316DC7608C7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"0B3E6E4D-E24E-4630-B00C-8C9901C597B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"E4A01A71-0F09-4DB2-A02F-7EFFBE27C98D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/11b8e27ed448baa385d90154a141466bd5e92f18\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3c3941bb1eb53abe7d640ffee5c4d6b559829ab3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/55c3b96074f3f9b0aee19bf93cd71af7516582bb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9533dbfac0ff7edd77a5fa2c24974b1d66c8b0a6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/995f47d76647708ec26c6e388663ad4f3f264787\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/9b58d36d0c1ea29a9571e0222a9c29df0ccfb7ff\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cf254b4f68e480e73dab055014e002b77aed30ed\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dfd0aa26e9a07f2ce546ccf8304ead6a2914e8a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://allelesecurity.com/use-after-free-vulnerability-in-can-bcm-subsystem-leading-to-information-disclosure-cve-2023-52922/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://allelesecurity.com/use-after-free-vulnerability-in-can-bcm-subsystem-leading-to-information-disclosure-cve-2023-52922/\"}], \"x_generator\": {\"engine\": \"ADPogram 0.0.1\"}, \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-06-13T20:05:35.471Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-52922\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-12-11T14:25:19.812424Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-12-11T14:25:21.314Z\"}}], \"cna\": {\"title\": \"can: bcm: Fix UAF in bcm_proc_show()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"11b8e27ed448baa385d90154a141466bd5e92f18\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"9b58d36d0c1ea29a9571e0222a9c29df0ccfb7ff\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"9533dbfac0ff7edd77a5fa2c24974b1d66c8b0a6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"cf254b4f68e480e73dab055014e002b77aed30ed\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"3c3941bb1eb53abe7d640ffee5c4d6b559829ab3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"995f47d76647708ec26c6e388663ad4f3f264787\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"dfd0aa26e9a07f2ce546ccf8304ead6a2914e8a7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"55c3b96074f3f9b0aee19bf93cd71af7516582bb\", \"versionType\": \"git\"}], \"programFiles\": [\"net/can/bcm.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.25\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.25\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.14.322\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.291\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.251\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.188\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.123\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.42\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.4.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.4.*\"}, {\"status\": \"unaffected\", \"version\": \"6.5\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/can/bcm.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/11b8e27ed448baa385d90154a141466bd5e92f18\"}, {\"url\": \"https://git.kernel.org/stable/c/9b58d36d0c1ea29a9571e0222a9c29df0ccfb7ff\"}, {\"url\": \"https://git.kernel.org/stable/c/9533dbfac0ff7edd77a5fa2c24974b1d66c8b0a6\"}, {\"url\": \"https://git.kernel.org/stable/c/cf254b4f68e480e73dab055014e002b77aed30ed\"}, {\"url\": \"https://git.kernel.org/stable/c/3c3941bb1eb53abe7d640ffee5c4d6b559829ab3\"}, {\"url\": \"https://git.kernel.org/stable/c/995f47d76647708ec26c6e388663ad4f3f264787\"}, {\"url\": \"https://git.kernel.org/stable/c/dfd0aa26e9a07f2ce546ccf8304ead6a2914e8a7\"}, {\"url\": \"https://git.kernel.org/stable/c/55c3b96074f3f9b0aee19bf93cd71af7516582bb\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: bcm: Fix UAF in bcm_proc_show()\\n\\nBUG: KASAN: slab-use-after-free in bcm_proc_show+0x969/0xa80\\nRead of size 8 at addr ffff888155846230 by task cat/7862\\n\\nCPU: 1 PID: 7862 Comm: cat Not tainted 6.5.0-rc1-00153-gc8746099c197 #230\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\\nCall Trace:\\n \u003cTASK\u003e\\n dump_stack_lvl+0xd5/0x150\\n print_report+0xc1/0x5e0\\n kasan_report+0xba/0xf0\\n bcm_proc_show+0x969/0xa80\\n seq_read_iter+0x4f6/0x1260\\n seq_read+0x165/0x210\\n proc_reg_read+0x227/0x300\\n vfs_read+0x1d5/0x8d0\\n ksys_read+0x11e/0x240\\n do_syscall_64+0x35/0xb0\\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nAllocated by task 7846:\\n kasan_save_stack+0x1e/0x40\\n kasan_set_track+0x21/0x30\\n __kasan_kmalloc+0x9e/0xa0\\n bcm_sendmsg+0x264b/0x44e0\\n sock_sendmsg+0xda/0x180\\n ____sys_sendmsg+0x735/0x920\\n ___sys_sendmsg+0x11d/0x1b0\\n __sys_sendmsg+0xfa/0x1d0\\n do_syscall_64+0x35/0xb0\\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\\nFreed by task 7846:\\n kasan_save_stack+0x1e/0x40\\n kasan_set_track+0x21/0x30\\n kasan_save_free_info+0x27/0x40\\n ____kasan_slab_free+0x161/0x1c0\\n slab_free_freelist_hook+0x119/0x220\\n __kmem_cache_free+0xb4/0x2e0\\n rcu_core+0x809/0x1bd0\\n\\nbcm_op is freed before procfs entry be removed in bcm_release(),\\nthis lead to bcm_proc_show() may read the freed bcm_op.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.322\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.291\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.251\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.188\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.123\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.42\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.4.7\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.5\", \"versionStartIncluding\": \"2.6.25\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:46:03.854Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-52922\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-06-13T20:05:35.471Z\", \"dateReserved\": \"2024-08-21T06:07:11.018Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-28T15:09:51.360Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.