CVE-2023-52752

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-52752", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T15:19:24.234Z", "datePublished": "2024-05-21T15:30:40.901Z", "dateUpdated": "2026-08-05T09:11:13.755Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:11:13.755Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix use-after-free bug in cifs_debug_data_proc_show()\n\nSkip SMB sessions that are being teared down\n(e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show()\nto avoid use-after-free in @ses.\n\nThis fixes the following GPF when reading from /proc/fs/cifs/DebugData\nwhile mounting and umounting\n\n [ 816.251274] general protection fault, probably for non-canonical\n address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI\n ...\n [ 816.260138] Call Trace:\n [ 816.260329] <TASK>\n [ 816.260499] ? die_addr+0x36/0x90\n [ 816.260762] ? exc_general_protection+0x1b3/0x410\n [ 816.261126] ? asm_exc_general_protection+0x26/0x30\n [ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs]\n [ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs]\n [ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs]\n [ 816.262689] ? seq_read_iter+0x379/0x470\n [ 816.262995] seq_read_iter+0x118/0x470\n [ 816.263291] proc_reg_read_iter+0x53/0x90\n [ 816.263596] ? srso_alias_return_thunk+0x5/0x7f\n [ 816.263945] vfs_read+0x201/0x350\n [ 816.264211] ksys_read+0x75/0x100\n [ 816.264472] do_syscall_64+0x3f/0x90\n [ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n [ 816.265135] RIP: 0033:0x7fd5e669d381"}], "metrics": [{"cvssV3_1": {"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"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable code is reached by reading /proc/fs/cifs/DebugData via local syscalls (vfs_read \u2192 seq_read_iter \u2192 cifs_debug_data_proc_show), not by processing remote SMB packets; this is the CIFS client debug interface.\nAC:L - The attacker can control both sides of the race by concurrently mounting/unmounting CIFS shares while repeatedly reading DebugData, making the UAF reliably triggerable without depending on unrelated system state.\nPR:L - DebugData is created with mode 0 which becomes world-readable (0444), so any unprivileged local user can hit the vulnerable show path; session teardown is reachable without real root via user/setuid CIFS mounts or multiuser-mount session prune.\nUI:N - No victim action is required; the attacker alone can open/read the proc file and induce session teardown through their own mount/session activity.\nS:U - This is a standard in-kernel UAF enabling local privilege escalation within the same host kernel authority; it does not cross VM, IOMMU, or other security boundaries.\nC:H - Use-after-free of session/tcon objects (demonstrated via SLAB poison 0x6b\u2026 in cifs_debug_tcon) allows reclaim and attacker-controlled contents, enabling arbitrary kernel memory disclosure.\nI:H - The same UAF of heap objects used during debug iteration can be turned into write/control-flow primitives via heap spraying, enabling integrity compromise and code execution in the kernel.\nA:H - The bug causes a kernel general protection fault/oops when freed tcon memory is accessed, so availability impact is a full kernel crash even without further exploitation."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/cifs_debug.c"], "versions": [{"version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "2abdf136784b7edaec7ffe0f4b461b63f9c4c4de", "status": "affected", "versionType": "git"}, {"version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "336a066990bb3962c46daf574ace596bda9303ce", "status": "affected", "versionType": "git"}, {"version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "558817597d5fbd7af31f891b67b0fd20f0d047b7", "status": "affected", "versionType": "git"}, {"version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "89929ea46f9cc11ba66d2c64713aa5d5dc723b09", "status": "affected", "versionType": "git"}, {"version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "0ab6f842452ce2cae04209d4671ac6289d0aef8a", "status": "affected", "versionType": "git"}, {"version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "d328c09ee9f15ee5a26431f5aad7c9239fa85e62", "status": "affected", "versionType": "git"}, {"version": "a67172a013953664b1dad03c648200c70b90506c", "status": "affected", "versionType": "git"}, {"version": "3.12.48", "lessThan": "3.13", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/cifs_debug.c"], "versions": [{"version": "3.13", "status": "affected"}, {"version": "0", "lessThan": "3.13", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.237", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.181", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.64", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.13", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.3", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7", "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": "3.13", "versionEndExcluding": "5.10.237"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "5.15.181"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.1.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.5.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.6.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.13", "versionEndExcluding": "6.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12.48"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2abdf136784b7edaec7ffe0f4b461b63f9c4c4de"}, {"url": "https://git.kernel.org/stable/c/336a066990bb3962c46daf574ace596bda9303ce"}, {"url": "https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7"}, {"url": "https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09"}, {"url": "https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a"}, {"url": "https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62"}], "title": "smb: client: fix use-after-free bug in cifs_debug_data_proc_show()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-416", "lang": "en", "description": "CWE-416 Use After Free"}]}], "affected": [{"vendor": "linux", "product": "linux_kernel", "cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "6.7", "status": "unaffected"}]}, {"vendor": "linux", "product": "linux_kernel", "cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "6.6.3", "status": "unaffected"}]}, {"vendor": "linux", "product": "linux_kernel", "cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "1da177e4c3f4", "status": "affected"}]}, {"vendor": "linux", "product": "linux_kernel", "cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "6.1.64", "status": "unaffected"}]}, {"vendor": "linux", "product": "linux_kernel", "cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "versions": [{"version": "6.5.13", "status": "unaffected"}]}], "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": {"timestamp": "2024-05-22T17:22:07.851461Z", "id": "CVE-2023-52752", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-07T19:50:52.035Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:28:47.925Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:28:47.925Z"}}, {"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-2023-52752", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-05-22T17:22:07.851461Z"}}}], "affected": [{"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "vendor": "linux", "product": "linux_kernel", "versions": [{"status": "unaffected", "version": "6.7"}], "defaultStatus": "unknown"}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "vendor": "linux", "product": "linux_kernel", "versions": [{"status": "unaffected", "version": "6.6.3"}], "defaultStatus": "unknown"}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "vendor": "linux", "product": "linux_kernel", "versions": [{"status": "affected", "version": "1da177e4c3f4"}], "defaultStatus": "unknown"}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "vendor": "linux", "product": "linux_kernel", "versions": [{"status": "unaffected", "version": "6.1.64"}], "defaultStatus": "unknown"}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "vendor": "linux", "product": "linux_kernel", "versions": [{"status": "unaffected", "version": "6.5.13"}], "defaultStatus": "unknown"}], "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": "2024-05-22T17:21:01.728Z"}}], "cna": {"title": "smb: client: fix use-after-free bug in cifs_debug_data_proc_show()", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerable code is reached by reading /proc/fs/cifs/DebugData via local syscalls (vfs_read \u2192 seq_read_iter \u2192 cifs_debug_data_proc_show), not by processing remote SMB packets; this is the CIFS client debug interface.\nAC:L - The attacker can control both sides of the race by concurrently mounting/unmounting CIFS shares while repeatedly reading DebugData, making the UAF reliably triggerable without depending on unrelated system state.\nPR:L - DebugData is created with mode 0 which becomes world-readable (0444), so any unprivileged local user can hit the vulnerable show path; session teardown is reachable without real root via user/setuid CIFS mounts or multiuser-mount session prune.\nUI:N - No victim action is required; the attacker alone can open/read the proc file and induce session teardown through their own mount/session activity.\nS:U - This is a standard in-kernel UAF enabling local privilege escalation within the same host kernel authority; it does not cross VM, IOMMU, or other security boundaries.\nC:H - Use-after-free of session/tcon objects (demonstrated via SLAB poison 0x6b\u2026 in cifs_debug_tcon) allows reclaim and attacker-controlled contents, enabling arbitrary kernel memory disclosure.\nI:H - The same UAF of heap objects used during debug iteration can be turned into write/control-flow primitives via heap spraying, enabling integrity compromise and code execution in the kernel.\nA:H - The bug causes a kernel general protection fault/oops when freed tcon memory is accessed, so availability impact is a full kernel crash even without further exploitation."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "2abdf136784b7edaec7ffe0f4b461b63f9c4c4de", "versionType": "git"}, {"status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "336a066990bb3962c46daf574ace596bda9303ce", "versionType": "git"}, {"status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "558817597d5fbd7af31f891b67b0fd20f0d047b7", "versionType": "git"}, {"status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "89929ea46f9cc11ba66d2c64713aa5d5dc723b09", "versionType": "git"}, {"status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "0ab6f842452ce2cae04209d4671ac6289d0aef8a", "versionType": "git"}, {"status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "lessThan": "d328c09ee9f15ee5a26431f5aad7c9239fa85e62", "versionType": "git"}, {"status": "affected", "version": "a67172a013953664b1dad03c648200c70b90506c", "versionType": "git"}, {"status": "affected", "version": "3.12.48", "lessThan": "3.13", "versionType": "semver"}], "programFiles": ["fs/smb/client/cifs_debug.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.13"}, {"status": "unaffected", "version": "0", "lessThan": "3.13", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.237", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.181", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.64", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.5.13", "versionType": "semver", "lessThanOrEqual": "6.5.*"}, {"status": "unaffected", "version": "6.6.3", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/smb/client/cifs_debug.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/2abdf136784b7edaec7ffe0f4b461b63f9c4c4de"}, {"url": "https://git.kernel.org/stable/c/336a066990bb3962c46daf574ace596bda9303ce"}, {"url": "https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7"}, {"url": "https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09"}, {"url": "https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a"}, {"url": "https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix use-after-free bug in cifs_debug_data_proc_show()\n\nSkip SMB sessions that are being teared down\n(e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show()\nto avoid use-after-free in @ses.\n\nThis fixes the following GPF when reading from /proc/fs/cifs/DebugData\nwhile mounting and umounting\n\n [ 816.251274] general protection fault, probably for non-canonical\n address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI\n ...\n [ 816.260138] Call Trace:\n [ 816.260329] <TASK>\n [ 816.260499] ? die_addr+0x36/0x90\n [ 816.260762] ? exc_general_protection+0x1b3/0x410\n [ 816.261126] ? asm_exc_general_protection+0x26/0x30\n [ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs]\n [ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs]\n [ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs]\n [ 816.262689] ? seq_read_iter+0x379/0x470\n [ 816.262995] seq_read_iter+0x118/0x470\n [ 816.263291] proc_reg_read_iter+0x53/0x90\n [ 816.263596] ? srso_alias_return_thunk+0x5/0x7f\n [ 816.263945] vfs_read+0x201/0x350\n [ 816.264211] ksys_read+0x75/0x100\n [ 816.264472] do_syscall_64+0x3f/0x90\n [ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n [ 816.265135] RIP: 0033:0x7fd5e669d381"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.237", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.181", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.64", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.5.13", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.3", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.7", "versionStartIncluding": "3.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "3.12.48"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:11:13.755Z"}}}, "cveMetadata": {"cveId": "CVE-2023-52752", "state": "PUBLISHED", "dateUpdated": "2026-08-05T09:11:13.755Z", "dateReserved": "2024-05-21T15:19:24.234Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-21T15:30:40.901Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/smb/client/cifs_debug.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "2abdf136784b7edaec7ffe0f4b461b63f9c4c4de", "status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "versionType": "git"}, {"lessThan": "336a066990bb3962c46daf574ace596bda9303ce", "status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "versionType": "git"}, {"lessThan": "558817597d5fbd7af31f891b67b0fd20f0d047b7", "status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "versionType": "git"}, {"lessThan": "89929ea46f9cc11ba66d2c64713aa5d5dc723b09", "status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "versionType": "git"}, {"lessThan": "0ab6f842452ce2cae04209d4671ac6289d0aef8a", "status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "versionType": "git"}, {"lessThan": "d328c09ee9f15ee5a26431f5aad7c9239fa85e62", "status": "affected", "version": "7f48558e6489d032b1584b0cc9ac4bb11072c034", "versionType": "git"}, {"status": "affected", "version": "a67172a013953664b1dad03c648200c70b90506c", "versionType": "git"}, {"lessThan": "3.13", "status": "affected", "version": "3.12.48", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/smb/client/cifs_debug.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.13"}, {"lessThan": "3.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.237", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.181", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.64", "versionType": "semver"}, {"lessThanOrEqual": "6.5.*", "status": "unaffected", "version": "6.5.13", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.7", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"affectedData": [{"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"status": "unaffected", "version": "6.7"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"status": "unaffected", "version": "6.6.3"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"status": "affected", "version": "1da177e4c3f4"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"status": "unaffected", "version": "6.1.64"}]}, {"cpes": ["cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "linux_kernel", "vendor": "linux", "versions": [{"status": "unaffected", "version": "6.5.13"}]}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A97CFFC1-1A90-4594-A6D8-FE2823A7BB24", "versionEndExcluding": "5.10.237", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "12331C9E-F601-4EFC-899E-369F98DCC70B", "versionEndExcluding": "5.15.181", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8D7C884A-CAA2-4EA2-9FEB-5CE776D7B05F", "versionEndExcluding": "6.1.64", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "674C4F82-C336-4B49-BF64-1DE422E889C4", "versionEndExcluding": "6.5.13", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B58252FA-A49C-411F-9B28-DC5FE44BC5A0", "versionEndExcluding": "6.6.3", "versionStartIncluding": "6.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix use-after-free bug in cifs_debug_data_proc_show()\n\nSkip SMB sessions that are being teared down\n(e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show()\nto avoid use-after-free in @ses.\n\nThis fixes the following GPF when reading from /proc/fs/cifs/DebugData\nwhile mounting and umounting\n\n [ 816.251274] general protection fault, probably for non-canonical\n address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI\n ...\n [ 816.260138] Call Trace:\n [ 816.260329] <TASK>\n [ 816.260499] ? die_addr+0x36/0x90\n [ 816.260762] ? exc_general_protection+0x1b3/0x410\n [ 816.261126] ? asm_exc_general_protection+0x26/0x30\n [ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs]\n [ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs]\n [ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs]\n [ 816.262689] ? seq_read_iter+0x379/0x470\n [ 816.262995] seq_read_iter+0x118/0x470\n [ 816.263291] proc_reg_read_iter+0x53/0x90\n [ 816.263596] ? srso_alias_return_thunk+0x5/0x7f\n [ 816.263945] vfs_read+0x201/0x350\n [ 816.264211] ksys_read+0x75/0x100\n [ 816.264472] do_syscall_64+0x3f/0x90\n [ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n [ 816.265135] RIP: 0033:0x7fd5e669d381"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: smb: cliente: corrige el error de use after free en cifs_debug_data_proc_show(). Omitir sesiones SMB que se est\u00e1n eliminando (por ejemplo, @ses-&gt;ses_status == SES_EXITING) en cifs_debug_data_proc_show() para evitar el use after free en @ses. Esto corrige el siguiente GPF al leer desde /proc/fs/cifs/DebugData mientras se monta y desmonta [816.251274] falla de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI... [816.260138] Llamada Seguimiento: [816.260329] [816.260499] ? die_addr+0x36/0x90 [816.260762]? exc_general_protection+0x1b3/0x410 [816.261126]? asm_exc_general_protection+0x26/0x30 [816.261502]? cifs_debug_tcon+0xbd/0x240 [cifs] [816.261878]? cifs_debug_tcon+0xab/0x240 [cifs] [816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs] [816.262689]? seq_read_iter+0x379/0x470 [816.262995] seq_read_iter+0x118/0x470 [816.263291] proc_reg_read_iter+0x53/0x90 [816.263596] ? srso_alias_return_thunk+0x5/0x7f [ 816.263945] vfs_read+0x201/0x350 [ 816.264211] ksys_read+0x75/0x100 [ 816.264472] do_syscall_64+0x3f/0x90 [ 816.2647 50] entrada_SYSCALL_64_after_hwframe+0x6e/0xd8 [816.265135] RIP: 0033:0x7fd5e669d381"}], "id": "CVE-2023-52752", "lastModified": "2026-06-17T06:43:30.193", "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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-52752", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-05-22T17:22:07.851461Z", "version": "2.0.3"}}]}, "published": "2024-05-21T16:15:14.833", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2abdf136784b7edaec7ffe0f4b461b63f9c4c4de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/336a066990bb3962c46daf574ace596bda9303ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: smb: client: fix use-after-free bug in cifs_debug_data_proc_show()", "id": "2282631", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282631"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nsmb: client: fix use-after-free bug in cifs_debug_data_proc_show()\nSkip SMB sessions that are being teared down\n(e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show()\nto avoid use-after-free in @ses.\nThis fixes the following GPF when reading from /proc/fs/cifs/DebugData\nwhile mounting and umounting\n[ 816.251274] general protection fault, probably for non-canonical\naddress 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI\n...\n[ 816.260138] Call Trace:\n[ 816.260329] <TASK>\n[ 816.260499] ? die_addr+0x36/0x90\n[ 816.260762] ? exc_general_protection+0x1b3/0x410\n[ 816.261126] ? asm_exc_general_protection+0x26/0x30\n[ 816.261502] ? cifs_debug_tcon+0xbd/0x240 [cifs]\n[ 816.261878] ? cifs_debug_tcon+0xab/0x240 [cifs]\n[ 816.262249] cifs_debug_data_proc_show+0x516/0xdb0 [cifs]\n[ 816.262689] ? seq_read_iter+0x379/0x470\n[ 816.262995] seq_read_iter+0x118/0x470\n[ 816.263291] proc_reg_read_iter+0x53/0x90\n[ 816.263596] ? srso_alias_return_thunk+0x5/0x7f\n[ 816.263945] vfs_read+0x201/0x350\n[ 816.264211] ksys_read+0x75/0x100\n[ 816.264472] do_syscall_64+0x3f/0x90\n[ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[ 816.265135] RIP: 0033:0x7fd5e669d381"], "name": "CVE-2023-52752", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52752\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52752"], "threat_severity": "Moderate"}

{}