CVE-2025-38728 (GCVE-0-2025-38728)
Vulnerability from cvelistv5
Published
2025-09-04 15:33
Modified
2025-11-03 17:41
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: smb3: fix for slab out of bounds on mount to ksmbd With KASAN enabled, it is possible to get a slab out of bounds during mount to ksmbd due to missing check in parse_server_interfaces() (see below): BUG: KASAN: slab-out-of-bounds in parse_server_interfaces+0x14ee/0x1880 [cifs] Read of size 4 at addr ffff8881433dba98 by task mount/9827 CPU: 5 UID: 0 PID: 9827 Comm: mount Tainted: G OE 6.16.0-rc2-kasan #2 PREEMPT(voluntary) Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE Hardware name: Dell Inc. Precision Tower 3620/0MWYPT, BIOS 2.13.1 06/14/2019 Call Trace: <TASK> dump_stack_lvl+0x9f/0xf0 print_report+0xd1/0x670 __virt_addr_valid+0x22c/0x430 ? parse_server_interfaces+0x14ee/0x1880 [cifs] ? kasan_complete_mode_report_info+0x2a/0x1f0 ? parse_server_interfaces+0x14ee/0x1880 [cifs] kasan_report+0xd6/0x110 parse_server_interfaces+0x14ee/0x1880 [cifs] __asan_report_load_n_noabort+0x13/0x20 parse_server_interfaces+0x14ee/0x1880 [cifs] ? __pfx_parse_server_interfaces+0x10/0x10 [cifs] ? trace_hardirqs_on+0x51/0x60 SMB3_request_interfaces+0x1ad/0x3f0 [cifs] ? __pfx_SMB3_request_interfaces+0x10/0x10 [cifs] ? SMB2_tcon+0x23c/0x15d0 [cifs] smb3_qfs_tcon+0x173/0x2b0 [cifs] ? __pfx_smb3_qfs_tcon+0x10/0x10 [cifs] ? cifs_get_tcon+0x105d/0x2120 [cifs] ? do_raw_spin_unlock+0x5d/0x200 ? cifs_get_tcon+0x105d/0x2120 [cifs] ? __pfx_smb3_qfs_tcon+0x10/0x10 [cifs] cifs_mount_get_tcon+0x369/0xb90 [cifs] ? dfs_cache_find+0xe7/0x150 [cifs] dfs_mount_share+0x985/0x2970 [cifs] ? check_path.constprop.0+0x28/0x50 ? save_trace+0x54/0x370 ? __pfx_dfs_mount_share+0x10/0x10 [cifs] ? __lock_acquire+0xb82/0x2ba0 ? __kasan_check_write+0x18/0x20 cifs_mount+0xbc/0x9e0 [cifs] ? __pfx_cifs_mount+0x10/0x10 [cifs] ? do_raw_spin_unlock+0x5d/0x200 ? cifs_setup_cifs_sb+0x29d/0x810 [cifs] cifs_smb3_do_mount+0x263/0x1990 [cifs]
References
Impacted products
Vendor Product Version
Linux Linux Version: fe856be475f7cf5ffcde57341d175ce9fd09434b
Version: fe856be475f7cf5ffcde57341d175ce9fd09434b
Version: fe856be475f7cf5ffcde57341d175ce9fd09434b
Version: fe856be475f7cf5ffcde57341d175ce9fd09434b
Version: fe856be475f7cf5ffcde57341d175ce9fd09434b
Version: fe856be475f7cf5ffcde57341d175ce9fd09434b
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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:41:57.246Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "Linux",
          "programFiles": [
            "fs/smb/client/smb2ops.c"
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          "vendor": "Linux",
          "versions": [
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              "version": "4.18"
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              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.149",
              "versionType": "semver"
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              "version": "6.6.103",
              "versionType": "semver"
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              "version": "6.12.43",
              "versionType": "semver"
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              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb3: fix for slab out of bounds on mount to ksmbd\n\nWith KASAN enabled, it is possible to get a slab out of bounds\nduring mount to ksmbd due to missing check in parse_server_interfaces()\n(see below):\n\n BUG: KASAN: slab-out-of-bounds in\n parse_server_interfaces+0x14ee/0x1880 [cifs]\n Read of size 4 at addr ffff8881433dba98 by task mount/9827\n\n CPU: 5 UID: 0 PID: 9827 Comm: mount Tainted: G\n OE       6.16.0-rc2-kasan #2 PREEMPT(voluntary)\n Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE\n Hardware name: Dell Inc. Precision Tower 3620/0MWYPT,\n BIOS 2.13.1 06/14/2019\n Call Trace:\n  \u003cTASK\u003e\n dump_stack_lvl+0x9f/0xf0\n print_report+0xd1/0x670\n __virt_addr_valid+0x22c/0x430\n ? parse_server_interfaces+0x14ee/0x1880 [cifs]\n ? kasan_complete_mode_report_info+0x2a/0x1f0\n ? parse_server_interfaces+0x14ee/0x1880 [cifs]\n   kasan_report+0xd6/0x110\n   parse_server_interfaces+0x14ee/0x1880 [cifs]\n   __asan_report_load_n_noabort+0x13/0x20\n   parse_server_interfaces+0x14ee/0x1880 [cifs]\n ? __pfx_parse_server_interfaces+0x10/0x10 [cifs]\n ? trace_hardirqs_on+0x51/0x60\n SMB3_request_interfaces+0x1ad/0x3f0 [cifs]\n ? __pfx_SMB3_request_interfaces+0x10/0x10 [cifs]\n ? SMB2_tcon+0x23c/0x15d0 [cifs]\n smb3_qfs_tcon+0x173/0x2b0 [cifs]\n ? __pfx_smb3_qfs_tcon+0x10/0x10 [cifs]\n ? cifs_get_tcon+0x105d/0x2120 [cifs]\n ? do_raw_spin_unlock+0x5d/0x200\n ? cifs_get_tcon+0x105d/0x2120 [cifs]\n ? __pfx_smb3_qfs_tcon+0x10/0x10 [cifs]\n cifs_mount_get_tcon+0x369/0xb90 [cifs]\n ? dfs_cache_find+0xe7/0x150 [cifs]\n dfs_mount_share+0x985/0x2970 [cifs]\n ? check_path.constprop.0+0x28/0x50\n ? save_trace+0x54/0x370\n ? __pfx_dfs_mount_share+0x10/0x10 [cifs]\n ? __lock_acquire+0xb82/0x2ba0\n ? __kasan_check_write+0x18/0x20\n cifs_mount+0xbc/0x9e0 [cifs]\n ? __pfx_cifs_mount+0x10/0x10 [cifs]\n ? do_raw_spin_unlock+0x5d/0x200\n ? cifs_setup_cifs_sb+0x29d/0x810 [cifs]\n cifs_smb3_do_mount+0x263/0x1990 [cifs]"
        }
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      "providerMetadata": {
        "dateUpdated": "2025-09-29T05:56:54.890Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9bdb8e98a0073c73ab3e6c631ec78877ceb64565"
        },
        {
          "url": "https://git.kernel.org/stable/c/a0620e1525663edd8c4594f49fb75fe5be4724b0"
        },
        {
          "url": "https://git.kernel.org/stable/c/8de33d4d72e8fae3502ec3850bd7b14e7c7328b6"
        },
        {
          "url": "https://git.kernel.org/stable/c/a542f93a123555d09c3ce8bc947f7b56ad8e6463"
        },
        {
          "url": "https://git.kernel.org/stable/c/f6eda5b0e8f8123564c5b34f5801d63243032eac"
        },
        {
          "url": "https://git.kernel.org/stable/c/7d34ec36abb84fdfb6632a0f2cbda90379ae21fc"
        }
      ],
      "title": "smb3: fix for slab out of bounds on mount to ksmbd",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38728",
    "datePublished": "2025-09-04T15:33:26.039Z",
    "dateReserved": "2025-04-16T04:51:24.033Z",
    "dateUpdated": "2025-11-03T17:41:57.246Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38728\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-04T16:15:42.867\",\"lastModified\":\"2025-11-03T18:16:37.967\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsmb3: fix for slab out of bounds on mount to ksmbd\\n\\nWith KASAN enabled, it is possible to get a slab out of bounds\\nduring mount to ksmbd due to missing check in parse_server_interfaces()\\n(see below):\\n\\n BUG: KASAN: slab-out-of-bounds in\\n parse_server_interfaces+0x14ee/0x1880 [cifs]\\n Read of size 4 at addr ffff8881433dba98 by task mount/9827\\n\\n CPU: 5 UID: 0 PID: 9827 Comm: mount Tainted: G\\n OE       6.16.0-rc2-kasan #2 PREEMPT(voluntary)\\n Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE\\n Hardware name: Dell Inc. Precision Tower 3620/0MWYPT,\\n BIOS 2.13.1 06/14/2019\\n Call Trace:\\n  \u003cTASK\u003e\\n dump_stack_lvl+0x9f/0xf0\\n print_report+0xd1/0x670\\n __virt_addr_valid+0x22c/0x430\\n ? parse_server_interfaces+0x14ee/0x1880 [cifs]\\n ? kasan_complete_mode_report_info+0x2a/0x1f0\\n ? parse_server_interfaces+0x14ee/0x1880 [cifs]\\n   kasan_report+0xd6/0x110\\n   parse_server_interfaces+0x14ee/0x1880 [cifs]\\n   __asan_report_load_n_noabort+0x13/0x20\\n   parse_server_interfaces+0x14ee/0x1880 [cifs]\\n ? __pfx_parse_server_interfaces+0x10/0x10 [cifs]\\n ? trace_hardirqs_on+0x51/0x60\\n SMB3_request_interfaces+0x1ad/0x3f0 [cifs]\\n ? __pfx_SMB3_request_interfaces+0x10/0x10 [cifs]\\n ? SMB2_tcon+0x23c/0x15d0 [cifs]\\n smb3_qfs_tcon+0x173/0x2b0 [cifs]\\n ? __pfx_smb3_qfs_tcon+0x10/0x10 [cifs]\\n ? cifs_get_tcon+0x105d/0x2120 [cifs]\\n ? do_raw_spin_unlock+0x5d/0x200\\n ? cifs_get_tcon+0x105d/0x2120 [cifs]\\n ? __pfx_smb3_qfs_tcon+0x10/0x10 [cifs]\\n cifs_mount_get_tcon+0x369/0xb90 [cifs]\\n ? dfs_cache_find+0xe7/0x150 [cifs]\\n dfs_mount_share+0x985/0x2970 [cifs]\\n ? check_path.constprop.0+0x28/0x50\\n ? save_trace+0x54/0x370\\n ? __pfx_dfs_mount_share+0x10/0x10 [cifs]\\n ? __lock_acquire+0xb82/0x2ba0\\n ? __kasan_check_write+0x18/0x20\\n cifs_mount+0xbc/0x9e0 [cifs]\\n ? __pfx_cifs_mount+0x10/0x10 [cifs]\\n ? do_raw_spin_unlock+0x5d/0x200\\n ? cifs_setup_cifs_sb+0x29d/0x810 [cifs]\\n cifs_smb3_do_mount+0x263/0x1990 [cifs]\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7d34ec36abb84fdfb6632a0f2cbda90379ae21fc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8de33d4d72e8fae3502ec3850bd7b14e7c7328b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9bdb8e98a0073c73ab3e6c631ec78877ceb64565\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a0620e1525663edd8c4594f49fb75fe5be4724b0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a542f93a123555d09c3ce8bc947f7b56ad8e6463\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f6eda5b0e8f8123564c5b34f5801d63243032eac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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