cve-2024-50294
Vulnerability from cvelistv5
Published
2024-11-19 01:30
Modified
2024-12-19 09:37
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix missing locking causing hanging calls If a call gets aborted (e.g. because kafs saw a signal) between it being queued for connection and the I/O thread picking up the call, the abort will be prioritised over the connection and it will be removed from local->new_client_calls by rxrpc_disconnect_client_call() without a lock being held. This may cause other calls on the list to disappear if a race occurs. Fix this by taking the client_call_lock when removing a call from whatever list its ->wait_link happens to be on.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/996a7208dadbf2cdda8d51444d5ee1fdd1ccbc92
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1fdb0bb3b6513f5bd26f92369fd6ac1a2422d8b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fc9de52de38f656399d2ce40f7349a6b5f86e787
Impacted products
Vendor Product Version
Linux Linux Version: 9d35d880e0e4a3ab32d8c12f9e4d76198aadd42d
Version: 9d35d880e0e4a3ab32d8c12f9e4d76198aadd42d
Version: 9d35d880e0e4a3ab32d8c12f9e4d76198aadd42d
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   Linux Linux Version: 6.2
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{
   containers: {
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "include/trace/events/rxrpc.h",
                  "net/rxrpc/conn_client.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "996a7208dadbf2cdda8d51444d5ee1fdd1ccbc92",
                     status: "affected",
                     version: "9d35d880e0e4a3ab32d8c12f9e4d76198aadd42d",
                     versionType: "git",
                  },
                  {
                     lessThan: "b1fdb0bb3b6513f5bd26f92369fd6ac1a2422d8b",
                     status: "affected",
                     version: "9d35d880e0e4a3ab32d8c12f9e4d76198aadd42d",
                     versionType: "git",
                  },
                  {
                     lessThan: "fc9de52de38f656399d2ce40f7349a6b5f86e787",
                     status: "affected",
                     version: "9d35d880e0e4a3ab32d8c12f9e4d76198aadd42d",
                     versionType: "git",
                  },
               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "include/trace/events/rxrpc.h",
                  "net/rxrpc/conn_client.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "6.2",
                  },
                  {
                     lessThan: "6.2",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.6.*",
                     status: "unaffected",
                     version: "6.6.61",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "6.11.*",
                     status: "unaffected",
                     version: "6.11.8",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "6.12",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix missing locking causing hanging calls\n\nIf a call gets aborted (e.g. because kafs saw a signal) between it being\nqueued for connection and the I/O thread picking up the call, the abort\nwill be prioritised over the connection and it will be removed from\nlocal->new_client_calls by rxrpc_disconnect_client_call() without a lock\nbeing held.  This may cause other calls on the list to disappear if a race\noccurs.\n\nFix this by taking the client_call_lock when removing a call from whatever\nlist its ->wait_link happens to be on.",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:37:36.299Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
         },
         references: [
            {
               url: "https://git.kernel.org/stable/c/996a7208dadbf2cdda8d51444d5ee1fdd1ccbc92",
            },
            {
               url: "https://git.kernel.org/stable/c/b1fdb0bb3b6513f5bd26f92369fd6ac1a2422d8b",
            },
            {
               url: "https://git.kernel.org/stable/c/fc9de52de38f656399d2ce40f7349a6b5f86e787",
            },
         ],
         title: "rxrpc: Fix missing locking causing hanging calls",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-50294",
      datePublished: "2024-11-19T01:30:40.699Z",
      dateReserved: "2024-10-21T19:36:19.986Z",
      dateUpdated: "2024-12-19T09:37:36.299Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
   "vulnerability-lookup:meta": {
      nvd: "{\"cve\":{\"id\":\"CVE-2024-50294\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-19T02:16:31.587\",\"lastModified\":\"2024-11-19T21:57:32.967\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nrxrpc: Fix missing locking causing hanging calls\\n\\nIf a call gets aborted (e.g. because kafs saw a signal) between it being\\nqueued for connection and the I/O thread picking up the call, the abort\\nwill be prioritised over the connection and it will be removed from\\nlocal->new_client_calls by rxrpc_disconnect_client_call() without a lock\\nbeing held.  This may cause other calls on the list to disappear if a race\\noccurs.\\n\\nFix this by taking the client_call_lock when removing a call from whatever\\nlist its ->wait_link happens to be on.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rxrpc: Se corrige la falta de bloqueo que causa llamadas colgadas Si una llamada se cancela (por ejemplo, porque kafs vio una señal) entre su puesta en cola para la conexión y el hilo de E/S que recoge la llamada, la cancelación tendrá prioridad sobre la conexión y se eliminará de local->new_client_calls mediante rxrpc_disconnect_client_call() sin que se mantenga un bloqueo. Esto puede provocar que otras llamadas de la lista desaparezcan si se produce una ejecución. Arregle esto tomando el client_call_lock al eliminar una llamada de cualquier lista en la que se encuentre su ->wait_link.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/996a7208dadbf2cdda8d51444d5ee1fdd1ccbc92\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b1fdb0bb3b6513f5bd26f92369fd6ac1a2422d8b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fc9de52de38f656399d2ce40f7349a6b5f86e787\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
   },
}


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