CVE-2025-37806 (GCVE-0-2025-37806)
Vulnerability from cvelistv5
Published
2025-05-08 06:26
Modified
2025-05-26 05:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Keep write operations atomic syzbot reported a NULL pointer dereference in __generic_file_write_iter. [1] Before the write operation is completed, the user executes ioctl[2] to clear the compress flag of the file, which causes the is_compressed() judgment to return 0, further causing the program to enter the wrong process and call the wrong ops ntfs_aops_cmpr, which triggers the null pointer dereference of write_begin. Use inode lock to synchronize ioctl and write to avoid this case. [1] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Mem abort info: ESR = 0x0000000086000006 EC = 0x21: IABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault user pgtable: 4k pages, 48-bit VAs, pgdp=000000011896d000 [0000000000000000] pgd=0800000118b44403, p4d=0800000118b44403, pud=0800000117517403, pmd=0000000000000000 Internal error: Oops: 0000000086000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 UID: 0 PID: 6427 Comm: syz-executor347 Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : 0x0 lr : generic_perform_write+0x29c/0x868 mm/filemap.c:4055 sp : ffff80009d4978a0 x29: ffff80009d4979c0 x28: dfff800000000000 x27: ffff80009d497bc8 x26: 0000000000000000 x25: ffff80009d497960 x24: ffff80008ba71c68 x23: 0000000000000000 x22: ffff0000c655dac0 x21: 0000000000001000 x20: 000000000000000c x19: 1ffff00013a92f2c x18: ffff0000e183aa1c x17: 0004060000000014 x16: ffff800083275834 x15: 0000000000000001 x14: 0000000000000000 x13: 0000000000000001 x12: ffff0000c655dac0 x11: 0000000000ff0100 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff80009d497980 x4 : ffff80009d497960 x3 : 0000000000001000 x2 : 0000000000000000 x1 : ffff0000e183a928 x0 : ffff0000d60b0fc0 Call trace: 0x0 (P) __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4156 ntfs_file_write_iter+0x54c/0x630 fs/ntfs3/file.c:1267 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x920/0xcf4 fs/read_write.c:679 ksys_write+0x15c/0x26c fs/read_write.c:731 __do_sys_write fs/read_write.c:742 [inline] __se_sys_write fs/read_write.c:739 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:739 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 [2] ioctl$FS_IOC_SETFLAGS(r0, 0x40086602, &(0x7f00000000c0)=0x20)
References
Impacted products
Vendor Product Version
Linux Linux Version: 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e
Version: 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e
Version: 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/ntfs3/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8db49e89a7f8b48ee59fa9ad32b6ed0879747df8",
              "status": "affected",
              "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e",
              "versionType": "git"
            },
            {
              "lessThan": "464139e18f619aa14fb921a61721862f43421c54",
              "status": "affected",
              "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e",
              "versionType": "git"
            },
            {
              "lessThan": "285cec318bf5a7a6c8ba999b2b6ec96f9a20590f",
              "status": "affected",
              "version": "4534a70b7056fd4b9a1c6db5a4ce3c98546b291e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/ntfs3/file.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.26",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.26",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.5",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Keep write operations atomic\n\nsyzbot reported a NULL pointer dereference in __generic_file_write_iter. [1]\n\nBefore the write operation is completed, the user executes ioctl[2] to clear\nthe compress flag of the file, which causes the is_compressed() judgment to\nreturn 0, further causing the program to enter the wrong process and call the\nwrong ops ntfs_aops_cmpr, which triggers the null pointer dereference of\nwrite_begin.\n\nUse inode lock to synchronize ioctl and write to avoid this case.\n\n[1]\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000000\nMem abort info:\n  ESR = 0x0000000086000006\n  EC = 0x21: IABT (current EL), IL = 32 bits\n  SET = 0, FnV = 0\n  EA = 0, S1PTW = 0\n  FSC = 0x06: level 2 translation fault\nuser pgtable: 4k pages, 48-bit VAs, pgdp=000000011896d000\n[0000000000000000] pgd=0800000118b44403, p4d=0800000118b44403, pud=0800000117517403, pmd=0000000000000000\nInternal error: Oops: 0000000086000006 [#1] PREEMPT SMP\nModules linked in:\nCPU: 0 UID: 0 PID: 6427 Comm: syz-executor347 Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : 0x0\nlr : generic_perform_write+0x29c/0x868 mm/filemap.c:4055\nsp : ffff80009d4978a0\nx29: ffff80009d4979c0 x28: dfff800000000000 x27: ffff80009d497bc8\nx26: 0000000000000000 x25: ffff80009d497960 x24: ffff80008ba71c68\nx23: 0000000000000000 x22: ffff0000c655dac0 x21: 0000000000001000\nx20: 000000000000000c x19: 1ffff00013a92f2c x18: ffff0000e183aa1c\nx17: 0004060000000014 x16: ffff800083275834 x15: 0000000000000001\nx14: 0000000000000000 x13: 0000000000000001 x12: ffff0000c655dac0\nx11: 0000000000ff0100 x10: 0000000000ff0100 x9 : 0000000000000000\nx8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000\nx5 : ffff80009d497980 x4 : ffff80009d497960 x3 : 0000000000001000\nx2 : 0000000000000000 x1 : ffff0000e183a928 x0 : ffff0000d60b0fc0\nCall trace:\n 0x0 (P)\n __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4156\n ntfs_file_write_iter+0x54c/0x630 fs/ntfs3/file.c:1267\n new_sync_write fs/read_write.c:586 [inline]\n vfs_write+0x920/0xcf4 fs/read_write.c:679\n ksys_write+0x15c/0x26c fs/read_write.c:731\n __do_sys_write fs/read_write.c:742 [inline]\n __se_sys_write fs/read_write.c:739 [inline]\n __arm64_sys_write+0x7c/0x90 fs/read_write.c:739\n __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]\n invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49\n el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132\n do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151\n el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744\n el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762\n\n[2]\nioctl$FS_IOC_SETFLAGS(r0, 0x40086602, \u0026(0x7f00000000c0)=0x20)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:21:15.603Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8db49e89a7f8b48ee59fa9ad32b6ed0879747df8"
        },
        {
          "url": "https://git.kernel.org/stable/c/464139e18f619aa14fb921a61721862f43421c54"
        },
        {
          "url": "https://git.kernel.org/stable/c/285cec318bf5a7a6c8ba999b2b6ec96f9a20590f"
        }
      ],
      "title": "fs/ntfs3: Keep write operations atomic",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37806",
    "datePublished": "2025-05-08T06:26:05.689Z",
    "dateReserved": "2025-04-16T04:51:23.942Z",
    "dateUpdated": "2025-05-26T05:21:15.603Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37806\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-08T07:15:51.773\",\"lastModified\":\"2025-05-08T14:39:09.683\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfs/ntfs3: Keep write operations atomic\\n\\nsyzbot reported a NULL pointer dereference in __generic_file_write_iter. [1]\\n\\nBefore the write operation is completed, the user executes ioctl[2] to clear\\nthe compress flag of the file, which causes the is_compressed() judgment to\\nreturn 0, further causing the program to enter the wrong process and call the\\nwrong ops ntfs_aops_cmpr, which triggers the null pointer dereference of\\nwrite_begin.\\n\\nUse inode lock to synchronize ioctl and write to avoid this case.\\n\\n[1]\\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000000\\nMem abort info:\\n  ESR = 0x0000000086000006\\n  EC = 0x21: IABT (current EL), IL = 32 bits\\n  SET = 0, FnV = 0\\n  EA = 0, S1PTW = 0\\n  FSC = 0x06: level 2 translation fault\\nuser pgtable: 4k pages, 48-bit VAs, pgdp=000000011896d000\\n[0000000000000000] pgd=0800000118b44403, p4d=0800000118b44403, pud=0800000117517403, pmd=0000000000000000\\nInternal error: Oops: 0000000086000006 [#1] PREEMPT SMP\\nModules linked in:\\nCPU: 0 UID: 0 PID: 6427 Comm: syz-executor347 Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\\npc : 0x0\\nlr : generic_perform_write+0x29c/0x868 mm/filemap.c:4055\\nsp : ffff80009d4978a0\\nx29: ffff80009d4979c0 x28: dfff800000000000 x27: ffff80009d497bc8\\nx26: 0000000000000000 x25: ffff80009d497960 x24: ffff80008ba71c68\\nx23: 0000000000000000 x22: ffff0000c655dac0 x21: 0000000000001000\\nx20: 000000000000000c x19: 1ffff00013a92f2c x18: ffff0000e183aa1c\\nx17: 0004060000000014 x16: ffff800083275834 x15: 0000000000000001\\nx14: 0000000000000000 x13: 0000000000000001 x12: ffff0000c655dac0\\nx11: 0000000000ff0100 x10: 0000000000ff0100 x9 : 0000000000000000\\nx8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000\\nx5 : ffff80009d497980 x4 : ffff80009d497960 x3 : 0000000000001000\\nx2 : 0000000000000000 x1 : ffff0000e183a928 x0 : ffff0000d60b0fc0\\nCall trace:\\n 0x0 (P)\\n __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4156\\n ntfs_file_write_iter+0x54c/0x630 fs/ntfs3/file.c:1267\\n new_sync_write fs/read_write.c:586 [inline]\\n vfs_write+0x920/0xcf4 fs/read_write.c:679\\n ksys_write+0x15c/0x26c fs/read_write.c:731\\n __do_sys_write fs/read_write.c:742 [inline]\\n __se_sys_write fs/read_write.c:739 [inline]\\n __arm64_sys_write+0x7c/0x90 fs/read_write.c:739\\n __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]\\n invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49\\n el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132\\n do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151\\n el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744\\n el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762\\n\\n[2]\\nioctl$FS_IOC_SETFLAGS(r0, 0x40086602, \u0026(0x7f00000000c0)=0x20)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fs/ntfs3: Mantener las operaciones de escritura at\u00f3micas. syzbot report\u00f3 una desreferencia de puntero nulo en __generic_file_write_iter. [1] Antes de completar la operaci\u00f3n de escritura, el usuario ejecuta ioctl[2] para borrar el indicador de compresi\u00f3n del archivo, lo que provoca que la sentencia is_compressed() devuelva 0, lo que provoca que el programa acceda al proceso incorrecto y llame a la operaci\u00f3n incorrecta ntfs_aops_cmpr, lo que desencadena la desreferencia de puntero nulo de write_begin. Utilice el bloqueo de inodo para sincronizar ioctl y write y evitar este caso. [1] No se puede manejar la desreferencia del puntero NULL del n\u00facleo en la direcci\u00f3n virtual 0000000000000000 Informaci\u00f3n de aborto de memoria: ESR = 0x0000000086000006 EC = 0x21: IABT (EL actual), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: error de traducci\u00f3n de nivel 2 usuario pgtable: 4k p\u00e1ginas, VAs de 48 bits, pgdp=000000011896d000 [000000000000000] pgd=0800000118b44403, p4d=0800000118b44403, pud=0800000117517403, pmd=0000000000000000 Error interno: Oops: 0000000086000006 [#1] PREEMPT M\u00f3dulos SMP vinculados: CPU: 0 UID: 0 PID: 6427 Comm: syz-executor347 No contaminado 6.13.0-rc3-syzkaller-g573067a5a685 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 13/09/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : 0x0 lr : generic_perform_write+0x29c/0x868 mm/filemap.c:4055 sp : ffff80009d4978a0 x29: ffff80009d4979c0 x28: dfff800000000000 x27: ffff80009d497bc8 x26: 00000000000000000 x25: ffff80009d497960 x24: ffff80008ba71c68 x23: 0000000000000000 x22: ffff0000c655dac0 x21: 0000000000001000 x20: 0000000000000000c x19: 1ffff00013a92f2c x18: ffff0000e183aa1c x17: 0004060000000014 x16: ffff800083275834 x15: 0000000000000001 x14: 0000000000000000 x13: 0000000000000001 x12: ffff0000c655dac0 x11: 0000000000ff0100 x10: 0000000000ff0100 x9: 0000000000000000 x8: 0000000000000000 x7: 0000000000000000 x6: 0000000000000000 x5 : ffff80009d497980 x4 : ffff80009d497960 x3 : 0000000000001000 x2 : 0000000000000000 x1 : ffff0000e183a928 x0 : ffff0000d60b0fc0 Rastreo de llamada: 0x0 (P) __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4156 ntfs_file_write_iter+0x54c/0x630 fs/ntfs3/file.c:1267 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x920/0xcf4 fs/read_write.c:679 ksys_write+0x15c/0x26c fs/read_write.c:731 __do_sys_write fs/read_write.c:742 [inline] __se_sys_write fs/read_write.c:739 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:739 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 [2] ioctl$FS_IOC_SETFLAGS(r0, 0x40086602, \u0026amp;(0x7f00000000c0)=0x20) \"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/285cec318bf5a7a6c8ba999b2b6ec96f9a20590f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/464139e18f619aa14fb921a61721862f43421c54\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8db49e89a7f8b48ee59fa9ad32b6ed0879747df8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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