cve-2024-56661
Vulnerability from cvelistv5
Published
2024-12-27 15:06
Modified
2025-01-20 06:25
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: tipc: fix NULL deref in cleanup_bearer() syzbot found [1] that after blamed commit, ub->ubsock->sk was NULL when attempting the atomic_dec() : atomic_dec(&tipc_net(sock_net(ub->ubsock->sk))->wq_count); Fix this by caching the tipc_net pointer. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] CPU: 0 UID: 0 PID: 5896 Comm: kworker/0:3 Not tainted 6.13.0-rc1-next-20241203-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events cleanup_bearer RIP: 0010:read_pnet include/net/net_namespace.h:387 [inline] RIP: 0010:sock_net include/net/sock.h:655 [inline] RIP: 0010:cleanup_bearer+0x1f7/0x280 net/tipc/udp_media.c:820 Code: 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 3c f7 99 f6 48 8b 1b 48 83 c3 30 e8 f0 e4 60 00 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 1a f7 99 f6 49 83 c7 e8 48 8b 1b RSP: 0018:ffffc9000410fb70 EFLAGS: 00010206 RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88802fe45a00 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000410f900 RBP: ffff88807e1f0908 R08: ffffc9000410f907 R09: 1ffff92000821f20 R10: dffffc0000000000 R11: fffff52000821f21 R12: ffff888031d19980 R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88807e1f0918 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556ca050b000 CR3: 0000000031c0c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07b569eda6fe6a1e83be5a587abee12d1303f95ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/754ec823ee53422361da7958a8c8bf3275426912Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89ecda492d0a37fd00aaffc4151f1f44c26d93acPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a771f349c95d3397636861a0a6462d4a7a7ecb25Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a852c82eda4991e21610837aaa160965be71f5ccPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b04d86fff66b15c07505d226431f808c15b1703cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d1d4dfb189a115734bff81c411bc58d9e348db7dPatch
Impacted products
Vendor Product Version
Linux Linux Version: 4e69457f9dfae67435f3ccf29008768eae860415
Version: 650ee9a22d7a2de8999fac2d45983597a0c22359
Version: d2a4894f238551eae178904e7f45af87577074fd
Version: d62d5180c036eeac09f80660edc7a602b369125f
Version: d00d4470bf8c4282617a3a10e76b20a9c7e4cffa
Version: e48b211c4c59062cb6dd6c2c37c51a7cc235a464
Version: 6a2fa13312e51a621f652d522d7e2df7066330b6
 Create a notification for this product.
   Linux Linux Version: 5.4.287   ≤
Version: 5.10.231   ≤
Version: 5.15.174   ≤
Version: 6.1.120   ≤
Version: 6.6.66   ≤
Version: 6.12.5   ≤
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/tipc/udp_media.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d1d4dfb189a115734bff81c411bc58d9e348db7d",
              "status": "affected",
              "version": "4e69457f9dfae67435f3ccf29008768eae860415",
              "versionType": "git"
            },
            {
              "lessThan": "a771f349c95d3397636861a0a6462d4a7a7ecb25",
              "status": "affected",
              "version": "650ee9a22d7a2de8999fac2d45983597a0c22359",
              "versionType": "git"
            },
            {
              "lessThan": "07b569eda6fe6a1e83be5a587abee12d1303f95e",
              "status": "affected",
              "version": "d2a4894f238551eae178904e7f45af87577074fd",
              "versionType": "git"
            },
            {
              "lessThan": "754ec823ee53422361da7958a8c8bf3275426912",
              "status": "affected",
              "version": "d62d5180c036eeac09f80660edc7a602b369125f",
              "versionType": "git"
            },
            {
              "lessThan": "89ecda492d0a37fd00aaffc4151f1f44c26d93ac",
              "status": "affected",
              "version": "d00d4470bf8c4282617a3a10e76b20a9c7e4cffa",
              "versionType": "git"
            },
            {
              "lessThan": "a852c82eda4991e21610837aaa160965be71f5cc",
              "status": "affected",
              "version": "e48b211c4c59062cb6dd6c2c37c51a7cc235a464",
              "versionType": "git"
            },
            {
              "lessThan": "b04d86fff66b15c07505d226431f808c15b1703c",
              "status": "affected",
              "version": "6a2fa13312e51a621f652d522d7e2df7066330b6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/tipc/udp_media.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5.4.288",
              "status": "affected",
              "version": "5.4.287",
              "versionType": "semver"
            },
            {
              "lessThan": "5.10.232",
              "status": "affected",
              "version": "5.10.231",
              "versionType": "semver"
            },
            {
              "lessThan": "5.15.175",
              "status": "affected",
              "version": "5.15.174",
              "versionType": "semver"
            },
            {
              "lessThan": "6.1.121",
              "status": "affected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.67",
              "status": "affected",
              "version": "6.6.66",
              "versionType": "semver"
            },
            {
              "lessThan": "6.12.6",
              "status": "affected",
              "version": "6.12.5",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: fix NULL deref in cleanup_bearer()\n\nsyzbot found [1] that after blamed commit, ub-\u003eubsock-\u003esk\nwas NULL when attempting the atomic_dec() :\n\natomic_dec(\u0026tipc_net(sock_net(ub-\u003eubsock-\u003esk))-\u003ewq_count);\n\nFix this by caching the tipc_net pointer.\n\n[1]\n\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]\nCPU: 0 UID: 0 PID: 5896 Comm: kworker/0:3 Not tainted 6.13.0-rc1-next-20241203-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nWorkqueue: events cleanup_bearer\n RIP: 0010:read_pnet include/net/net_namespace.h:387 [inline]\n RIP: 0010:sock_net include/net/sock.h:655 [inline]\n RIP: 0010:cleanup_bearer+0x1f7/0x280 net/tipc/udp_media.c:820\nCode: 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 3c f7 99 f6 48 8b 1b 48 83 c3 30 e8 f0 e4 60 00 48 89 d8 48 c1 e8 03 \u003c42\u003e 80 3c 28 00 74 08 48 89 df e8 1a f7 99 f6 49 83 c7 e8 48 8b 1b\nRSP: 0018:ffffc9000410fb70 EFLAGS: 00010206\nRAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88802fe45a00\nRDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000410f900\nRBP: ffff88807e1f0908 R08: ffffc9000410f907 R09: 1ffff92000821f20\nR10: dffffc0000000000 R11: fffff52000821f21 R12: ffff888031d19980\nR13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88807e1f0918\nFS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000556ca050b000 CR3: 0000000031c0c000 CR4: 00000000003526f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-20T06:25:16.344Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d1d4dfb189a115734bff81c411bc58d9e348db7d"
        },
        {
          "url": "https://git.kernel.org/stable/c/a771f349c95d3397636861a0a6462d4a7a7ecb25"
        },
        {
          "url": "https://git.kernel.org/stable/c/07b569eda6fe6a1e83be5a587abee12d1303f95e"
        },
        {
          "url": "https://git.kernel.org/stable/c/754ec823ee53422361da7958a8c8bf3275426912"
        },
        {
          "url": "https://git.kernel.org/stable/c/89ecda492d0a37fd00aaffc4151f1f44c26d93ac"
        },
        {
          "url": "https://git.kernel.org/stable/c/a852c82eda4991e21610837aaa160965be71f5cc"
        },
        {
          "url": "https://git.kernel.org/stable/c/b04d86fff66b15c07505d226431f808c15b1703c"
        }
      ],
      "title": "tipc: fix NULL deref in cleanup_bearer()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56661",
    "datePublished": "2024-12-27T15:06:23.928Z",
    "dateReserved": "2024-12-27T15:00:39.843Z",
    "dateUpdated": "2025-01-20T06:25:16.344Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56661\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-27T15:15:25.960\",\"lastModified\":\"2025-01-06T18:49:40.310\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntipc: fix NULL deref in cleanup_bearer()\\n\\nsyzbot found [1] that after blamed commit, ub-\u003eubsock-\u003esk\\nwas NULL when attempting the atomic_dec() :\\n\\natomic_dec(\u0026tipc_net(sock_net(ub-\u003eubsock-\u003esk))-\u003ewq_count);\\n\\nFix this by caching the tipc_net pointer.\\n\\n[1]\\n\\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI\\nKASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037]\\nCPU: 0 UID: 0 PID: 5896 Comm: kworker/0:3 Not tainted 6.13.0-rc1-next-20241203-syzkaller #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\\nWorkqueue: events cleanup_bearer\\n RIP: 0010:read_pnet include/net/net_namespace.h:387 [inline]\\n RIP: 0010:sock_net include/net/sock.h:655 [inline]\\n RIP: 0010:cleanup_bearer+0x1f7/0x280 net/tipc/udp_media.c:820\\nCode: 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 3c f7 99 f6 48 8b 1b 48 83 c3 30 e8 f0 e4 60 00 48 89 d8 48 c1 e8 03 \u003c42\u003e 80 3c 28 00 74 08 48 89 df e8 1a f7 99 f6 49 83 c7 e8 48 8b 1b\\nRSP: 0018:ffffc9000410fb70 EFLAGS: 00010206\\nRAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88802fe45a00\\nRDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000410f900\\nRBP: ffff88807e1f0908 R08: ffffc9000410f907 R09: 1ffff92000821f20\\nR10: dffffc0000000000 R11: fffff52000821f21 R12: ffff888031d19980\\nR13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88807e1f0918\\nFS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 0000556ca050b000 CR3: 0000000031c0c000 CR4: 00000000003526f0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tipc: se corrige la deref NULL en cleanup_bearer() syzbot encontr\u00f3 [1] que despu\u00e9s de el commit culpada, ub-\u0026gt;ubsock-\u0026gt;sk era NULL al intentar atomic_dec() : atomic_dec(\u0026amp;tipc_net(sock_net(ub-\u0026gt;ubsock-\u0026gt;sk))-\u0026gt;wq_count); Solucione esto almacenando en cach\u00e9 el puntero tipc_net. [1] Ups: error de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref en el rango [0x000000000000030-0x0000000000000037] CPU: 0 UID: 0 PID: 5896 Comm: kworker/0:3 No contaminado 6.13.0-rc1-next-20241203-syzkaller #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 13/09/2024 Cola de trabajo: eventos cleanup_bearer RIP: 0010:read_pnet include/net/net_namespace.h:387 [en l\u00ednea] RIP: 0010:sock_net include/net/sock.h:655 [en l\u00ednea] RIP: 0010:cleanup_bearer+0x1f7/0x280 net/tipc/udp_media.c:820 C\u00f3digo: 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 3c f7 99 f6 48 8b 1b 48 83 c3 30 e8 f0 e4 60 00 48 89 d8 48 c1 e8 03 \u0026lt;42\u0026gt; 80 3c 28 00 74 08 48 89 df e8 1a f7 99 f6 49 83 c7 e8 48 8b 1b RSP: 0018:ffffc9000410fb70 EFLAGS: 00010206 RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff88802fe45a00 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000410f900 RBP: ffff88807e1f0908 R08: ffffc9000410f907 R09: 1ffff92000821f20 R10: dffffc0000000000 R11: fffff52000821f21 R12: ffff888031d19980 R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88807e1f0918 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556ca050b000 CR3: 0000000031c0c000 CR4: 00000000003526f0 DR0: 00000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\"}],\"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:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.4.287:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"270B5743-09BB-4393-B8A8-86C7EAAB8DAC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.10.231:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7D576002-9649-4BE6-AF72-C5E230DF0A0A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.15.174:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B25345A0-8E32-4651-B6FF-2DE4DB0B3A48\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.1.120:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"52A2191E-D354-4732-9A39-C4059434873F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.6.66:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"36894D4E-0255-4309-B4D2-06ED50D7D076\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F9807ED9-EBAB-45B9-AC9D-FA54900DD0DC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"5A073481-106D-4B15-B4C7-FB0213B8E1D4\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/07b569eda6fe6a1e83be5a587abee12d1303f95e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/754ec823ee53422361da7958a8c8bf3275426912\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/89ecda492d0a37fd00aaffc4151f1f44c26d93ac\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a771f349c95d3397636861a0a6462d4a7a7ecb25\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a852c82eda4991e21610837aaa160965be71f5cc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b04d86fff66b15c07505d226431f808c15b1703c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d1d4dfb189a115734bff81c411bc58d9e348db7d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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