{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-53629", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-07T15:16:59.656Z", "datePublished": "2025-10-07T15:19:32.960Z", "dateUpdated": "2026-05-11T19:48:51.173Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:48:51.173Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: dlm: fix use after free in midcomms commit\n\nWhile working on processing dlm message in softirq context I experienced\nthe following KASAN use-after-free warning:\n\n[ 151.760477] ==================================================================\n[ 151.761803] BUG: KASAN: use-after-free in dlm_midcomms_commit_mhandle+0x19d/0x4b0\n[ 151.763414] Read of size 4 at addr ffff88811a980c60 by task lock_torture/1347\n\n[ 151.765284] CPU: 7 PID: 1347 Comm: lock_torture Not tainted 6.1.0-rc4+ #2828\n[ 151.766778] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.16.0-3.module+el8.7.0+16134+e5908aa2 04/01/2014\n[ 151.768726] Call Trace:\n[ 151.769277] <TASK>\n[ 151.769748] dump_stack_lvl+0x5b/0x86\n[ 151.770556] print_report+0x180/0x4c8\n[ 151.771378] ? kasan_complete_mode_report_info+0x7c/0x1e0\n[ 151.772241] ? dlm_midcomms_commit_mhandle+0x19d/0x4b0\n[ 151.773069] kasan_report+0x93/0x1a0\n[ 151.773668] ? dlm_midcomms_commit_mhandle+0x19d/0x4b0\n[ 151.774514] __asan_load4+0x7e/0xa0\n[ 151.775089] dlm_midcomms_commit_mhandle+0x19d/0x4b0\n[ 151.775890] ? create_message.isra.29.constprop.64+0x57/0xc0\n[ 151.776770] send_common+0x19f/0x1b0\n[ 151.777342] ? remove_from_waiters+0x60/0x60\n[ 151.778017] ? lock_downgrade+0x410/0x410\n[ 151.778648] ? __this_cpu_preempt_check+0x13/0x20\n[ 151.779421] ? rcu_lockdep_current_cpu_online+0x88/0xc0\n[ 151.780292] _convert_lock+0x46/0x150\n[ 151.780893] convert_lock+0x7b/0xc0\n[ 151.781459] dlm_lock+0x3ac/0x580\n[ 151.781993] ? 0xffffffffc0540000\n[ 151.782522] ? torture_stop+0x120/0x120 [dlm_locktorture]\n[ 151.783379] ? dlm_scan_rsbs+0xa70/0xa70\n[ 151.784003] ? preempt_count_sub+0xd6/0x130\n[ 151.784661] ? is_module_address+0x47/0x70\n[ 151.785309] ? torture_stop+0x120/0x120 [dlm_locktorture]\n[ 151.786166] ? 0xffffffffc0540000\n[ 151.786693] ? lockdep_init_map_type+0xc3/0x360\n[ 151.787414] ? 0xffffffffc0540000\n[ 151.787947] torture_dlm_lock_sync.isra.3+0xe9/0x150 [dlm_locktorture]\n[ 151.789004] ? torture_stop+0x120/0x120 [dlm_locktorture]\n[ 151.789858] ? 0xffffffffc0540000\n[ 151.790392] ? lock_torture_cleanup+0x20/0x20 [dlm_locktorture]\n[ 151.791347] ? delay_tsc+0x94/0xc0\n[ 151.791898] torture_ex_iter+0xc3/0xea [dlm_locktorture]\n[ 151.792735] ? torture_start+0x30/0x30 [dlm_locktorture]\n[ 151.793606] lock_torture+0x177/0x270 [dlm_locktorture]\n[ 151.794448] ? torture_dlm_lock_sync.isra.3+0x150/0x150 [dlm_locktorture]\n[ 151.795539] ? lock_torture_stats+0x80/0x80 [dlm_locktorture]\n[ 151.796476] ? do_raw_spin_lock+0x11e/0x1e0\n[ 151.797152] ? mark_held_locks+0x34/0xb0\n[ 151.797784] ? _raw_spin_unlock_irqrestore+0x30/0x70\n[ 151.798581] ? __kthread_parkme+0x79/0x110\n[ 151.799246] ? trace_preempt_on+0x2a/0xf0\n[ 151.799902] ? __kthread_parkme+0x79/0x110\n[ 151.800579] ? preempt_count_sub+0xd6/0x130\n[ 151.801271] ? __kasan_check_read+0x11/0x20\n[ 151.801963] ? __kthread_parkme+0xec/0x110\n[ 151.802630] ? lock_torture_stats+0x80/0x80 [dlm_locktorture]\n[ 151.803569] kthread+0x192/0x1d0\n[ 151.804104] ? kthread_complete_and_exit+0x30/0x30\n[ 151.804881] ret_from_fork+0x1f/0x30\n[ 151.805480] </TASK>\n\n[ 151.806111] Allocated by task 1347:\n[ 151.806681] kasan_save_stack+0x26/0x50\n[ 151.807308] kasan_set_track+0x25/0x30\n[ 151.807920] kasan_save_alloc_info+0x1e/0x30\n[ 151.808609] __kasan_slab_alloc+0x63/0x80\n[ 151.809263] kmem_cache_alloc+0x1ad/0x830\n[ 151.809916] dlm_allocate_mhandle+0x17/0x20\n[ 151.810590] dlm_midcomms_get_mhandle+0x96/0x260\n[ 151.811344] _create_message+0x95/0x180\n[ 151.811994] create_message.isra.29.constprop.64+0x57/0xc0\n[ 151.812880] send_common+0x129/0x1b0\n[ 151.813467] _convert_lock+0x46/0x150\n[ 151.814074] convert_lock+0x7b/0xc0\n[ 151.814648] dlm_lock+0x3ac/0x580\n[ 151.815199] torture_dlm_lock_sync.isra.3+0xe9/0x150 [dlm_locktorture]\n[ 151.816258] torture_ex_iter+0xc3/0xea [dlm_locktorture]\n[ 151.817129] lock_t\n---truncated---"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/dlm/midcomms.c"], "versions": [{"version": "489d8e559c6596eb08e16447d9830bc39afbe54e", "lessThan": "a3b0e9ac3c2447008db942d51f593841d8329e99", "status": "affected", "versionType": "git"}, {"version": "489d8e559c6596eb08e16447d9830bc39afbe54e", "lessThan": "a2de9f9b686c71b4fa3663ae374f5f643c46a446", "status": "affected", "versionType": "git"}, {"version": "489d8e559c6596eb08e16447d9830bc39afbe54e", "lessThan": "724b6bab0d75f1dc01fdfbf7fe8d4217a5cb90ba", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/dlm/midcomms.c"], "versions": [{"version": "5.14", "status": "affected"}, {"version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.20", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.3", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.1.20"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.2.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a3b0e9ac3c2447008db942d51f593841d8329e99"}, {"url": "https://git.kernel.org/stable/c/a2de9f9b686c71b4fa3663ae374f5f643c46a446"}, {"url": "https://git.kernel.org/stable/c/724b6bab0d75f1dc01fdfbf7fe8d4217a5cb90ba"}], "title": "fs: dlm: fix use after free in midcomms commit", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "11DC9B79-A3D9-48E0-ACA3-BD431CD1AEE1", "versionEndExcluding": "6.1.20", "versionStartIncluding": "5.14", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "88C67289-22AD-4CA9-B202-5F5A80E5BA4B", "versionEndExcluding": "6.2.3", "versionStartIncluding": "6.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs: dlm: fix use after free in midcomms commit\n\nWhile working on processing dlm message in softirq context I experienced\nthe following KASAN use-after-free warning:\n\n[ 151.760477] ==================================================================\n[ 151.761803] BUG: KASAN: use-after-free in dlm_midcomms_commit_mhandle+0x19d/0x4b0\n[ 151.763414] Read of size 4 at addr ffff88811a980c60 by task lock_torture/1347\n\n[ 151.765284] CPU: 7 PID: 1347 Comm: lock_torture Not tainted 6.1.0-rc4+ #2828\n[ 151.766778] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.16.0-3.module+el8.7.0+16134+e5908aa2 04/01/2014\n[ 151.768726] Call Trace:\n[ 151.769277] <TASK>\n[ 151.769748] dump_stack_lvl+0x5b/0x86\n[ 151.770556] print_report+0x180/0x4c8\n[ 151.771378] ? kasan_complete_mode_report_info+0x7c/0x1e0\n[ 151.772241] ? dlm_midcomms_commit_mhandle+0x19d/0x4b0\n[ 151.773069] kasan_report+0x93/0x1a0\n[ 151.773668] ? dlm_midcomms_commit_mhandle+0x19d/0x4b0\n[ 151.774514] __asan_load4+0x7e/0xa0\n[ 151.775089] dlm_midcomms_commit_mhandle+0x19d/0x4b0\n[ 151.775890] ? create_message.isra.29.constprop.64+0x57/0xc0\n[ 151.776770] send_common+0x19f/0x1b0\n[ 151.777342] ? remove_from_waiters+0x60/0x60\n[ 151.778017] ? lock_downgrade+0x410/0x410\n[ 151.778648] ? __this_cpu_preempt_check+0x13/0x20\n[ 151.779421] ? rcu_lockdep_current_cpu_online+0x88/0xc0\n[ 151.780292] _convert_lock+0x46/0x150\n[ 151.780893] convert_lock+0x7b/0xc0\n[ 151.781459] dlm_lock+0x3ac/0x580\n[ 151.781993] ? 0xffffffffc0540000\n[ 151.782522] ? torture_stop+0x120/0x120 [dlm_locktorture]\n[ 151.783379] ? dlm_scan_rsbs+0xa70/0xa70\n[ 151.784003] ? preempt_count_sub+0xd6/0x130\n[ 151.784661] ? is_module_address+0x47/0x70\n[ 151.785309] ? torture_stop+0x120/0x120 [dlm_locktorture]\n[ 151.786166] ? 0xffffffffc0540000\n[ 151.786693] ? lockdep_init_map_type+0xc3/0x360\n[ 151.787414] ? 0xffffffffc0540000\n[ 151.787947] torture_dlm_lock_sync.isra.3+0xe9/0x150 [dlm_locktorture]\n[ 151.789004] ? torture_stop+0x120/0x120 [dlm_locktorture]\n[ 151.789858] ? 0xffffffffc0540000\n[ 151.790392] ? lock_torture_cleanup+0x20/0x20 [dlm_locktorture]\n[ 151.791347] ? delay_tsc+0x94/0xc0\n[ 151.791898] torture_ex_iter+0xc3/0xea [dlm_locktorture]\n[ 151.792735] ? torture_start+0x30/0x30 [dlm_locktorture]\n[ 151.793606] lock_torture+0x177/0x270 [dlm_locktorture]\n[ 151.794448] ? torture_dlm_lock_sync.isra.3+0x150/0x150 [dlm_locktorture]\n[ 151.795539] ? lock_torture_stats+0x80/0x80 [dlm_locktorture]\n[ 151.796476] ? do_raw_spin_lock+0x11e/0x1e0\n[ 151.797152] ? mark_held_locks+0x34/0xb0\n[ 151.797784] ? _raw_spin_unlock_irqrestore+0x30/0x70\n[ 151.798581] ? __kthread_parkme+0x79/0x110\n[ 151.799246] ? trace_preempt_on+0x2a/0xf0\n[ 151.799902] ? __kthread_parkme+0x79/0x110\n[ 151.800579] ? preempt_count_sub+0xd6/0x130\n[ 151.801271] ? __kasan_check_read+0x11/0x20\n[ 151.801963] ? __kthread_parkme+0xec/0x110\n[ 151.802630] ? lock_torture_stats+0x80/0x80 [dlm_locktorture]\n[ 151.803569] kthread+0x192/0x1d0\n[ 151.804104] ? kthread_complete_and_exit+0x30/0x30\n[ 151.804881] ret_from_fork+0x1f/0x30\n[ 151.805480] </TASK>\n\n[ 151.806111] Allocated by task 1347:\n[ 151.806681] kasan_save_stack+0x26/0x50\n[ 151.807308] kasan_set_track+0x25/0x30\n[ 151.807920] kasan_save_alloc_info+0x1e/0x30\n[ 151.808609] __kasan_slab_alloc+0x63/0x80\n[ 151.809263] kmem_cache_alloc+0x1ad/0x830\n[ 151.809916] dlm_allocate_mhandle+0x17/0x20\n[ 151.810590] dlm_midcomms_get_mhandle+0x96/0x260\n[ 151.811344] _create_message+0x95/0x180\n[ 151.811994] create_message.isra.29.constprop.64+0x57/0xc0\n[ 151.812880] send_common+0x129/0x1b0\n[ 151.813467] _convert_lock+0x46/0x150\n[ 151.814074] convert_lock+0x7b/0xc0\n[ 151.814648] dlm_lock+0x3ac/0x580\n[ 151.815199] torture_dlm_lock_sync.isra.3+0xe9/0x150 [dlm_locktorture]\n[ 151.816258] torture_ex_iter+0xc3/0xea [dlm_locktorture]\n[ 151.817129] lock_t\n---truncated---"}], "id": "CVE-2023-53629", "lastModified": "2026-02-03T22:27:26.107", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-10-07T16:15:45.933", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/724b6bab0d75f1dc01fdfbf7fe8d4217a5cb90ba"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a2de9f9b686c71b4fa3663ae374f5f643c46a446"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3b0e9ac3c2447008db942d51f593841d8329e99"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: fs: dlm: fix use after free in midcomms commit", "id": "2402305", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2402305"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2023-53629", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Under investigation", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53629\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53629\nhttps://lore.kernel.org/linux-cve-announce/2025100712-CVE-2023-53629-042c@gregkh/T"], "threat_severity": "Important"}

{"created": "2025-10-08T13:36:33.031241+00:00", "updated": "2025-10-08T13:36:33.031276+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}