cve-2023-52752
Vulnerability from cvelistv5
Published
2024-05-21 15:30
Modified
2025-01-16 20:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free bug in cifs_debug_data_proc_show() Skip SMB sessions that are being teared down (e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show() to avoid use-after-free in @ses. This fixes the following GPF when reading from /proc/fs/cifs/DebugData while mounting and umounting [ 816.251274] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI ... [ 816.260138] Call Trace: [ 816.260329] <TASK> [ 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 [ 816.264750] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ 816.265135] RIP: 0033:0x7fd5e669d381
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/558817597d5fbd7af31f891b67b0fd20f0d047b7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/89929ea46f9cc11ba66d2c64713aa5d5dc723b09Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62Patch
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
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      cna: {
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               defaultStatus: "unaffected",
               product: "Linux",
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         descriptions: [
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               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",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T08:25:02.571Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
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            },
            {
               url: "https://git.kernel.org/stable/c/d328c09ee9f15ee5a26431f5aad7c9239fa85e62",
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         title: "smb: client: fix use-after-free bug in cifs_debug_data_proc_show()",
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      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2023-52752",
      datePublished: "2024-05-21T15:30:40.901Z",
      dateReserved: "2024-05-21T15:19:24.234Z",
      dateUpdated: "2025-01-16T20:46:56.387Z",
      state: "PUBLISHED",
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Omitir sesiones SMB que se están 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 protección general, probablemente para la dirección no canónica 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\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"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\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.1.64\",\"matchCriteriaId\":\"B8093658-5835-493E-9047-EEC6269C0BB1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.5.13\",\"matchCriteriaId\":\"674C4F82-C336-4B49-BF64-1DE422E889C4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.6\",\"versionEndExcluding\":\"6.6.3\",\"matchCriteriaId\":\"B58252FA-A49C-411F-9B28-DC5FE44BC5A0\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0ab6f842452ce2cae04209d4671ac6289d0aef8a\",\"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\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"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\":[\"Patch\"]}]}}",
      vulnrichment: {
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\"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\": 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\"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"0ab6f842452ce2cae04209d4671ac6289d0aef8a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\", \"lessThan\": \"d328c09ee9f15ee5a26431f5aad7c9239fa85e62\", \"versionType\": \"git\"}], \"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\": \"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/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-5f407fcff5a0\"}, \"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\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-12-19T08:25:02.571Z\"}}}",
         cveMetadata: "{\"cveId\": \"CVE-2023-52752\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-01-16T20:46:56.387Z\", \"dateReserved\": \"2024-05-21T15:19:24.234Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T15:30:40.901Z\", \"assignerShortName\": \"Linux\"}",
         dataType: "CVE_RECORD",
         dataVersion: "5.1",
      },
   },
}


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