cve-2024-38596
Vulnerability from cvelistv5
Published
2024-06-19 13:45
Modified
2024-11-05 09:30
Severity ?
Summary
af_unix: Fix data races in unix_release_sock/unix_stream_sendmsg
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0688d4e499bee3f2749bca27329bd128686230cb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4d51845d734a4c5d079e56e0916f936a55e15055
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/540bf24fba16b88c1b3b9353927204b4f1074e25
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8299e4d778f664b31b67cf4cf3d5409de2ecb92c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9aa8773abfa0e954136875b4cbf2df4cf638e8a5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a4c88072abcaca593cefe70f90e9d3707526e8f9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a52fa2addfcccc2c5a0217fd45562605088c018b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/de6641d213373fbde9bbdd7c4b552254bc9f82fe
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fca6072e1a7b1e709ada5604b951513b89b4bd0a
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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    "cveId": "CVE-2024-38596",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-38596\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-19T14:15:19.640\",\"lastModified\":\"2024-07-15T07:15:11.600\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\naf_unix: Fix data races in unix_release_sock/unix_stream_sendmsg\\n\\nA data-race condition has been identified in af_unix. In one data path,\\nthe write function unix_release_sock() atomically writes to\\nsk-\u003esk_shutdown using WRITE_ONCE. However, on the reader side,\\nunix_stream_sendmsg() does not read it atomically. Consequently, this\\nissue is causing the following KCSAN splat to occur:\\n\\n\\tBUG: KCSAN: data-race in unix_release_sock / unix_stream_sendmsg\\n\\n\\twrite (marked) to 0xffff88867256ddbb of 1 bytes by task 7270 on cpu 28:\\n\\tunix_release_sock (net/unix/af_unix.c:640)\\n\\tunix_release (net/unix/af_unix.c:1050)\\n\\tsock_close (net/socket.c:659 net/socket.c:1421)\\n\\t__fput (fs/file_table.c:422)\\n\\t__fput_sync (fs/file_table.c:508)\\n\\t__se_sys_close (fs/open.c:1559 fs/open.c:1541)\\n\\t__x64_sys_close (fs/open.c:1541)\\n\\tx64_sys_call (arch/x86/entry/syscall_64.c:33)\\n\\tdo_syscall_64 (arch/x86/entry/common.c:?)\\n\\tentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)\\n\\n\\tread to 0xffff88867256ddbb of 1 bytes by task 989 on cpu 14:\\n\\tunix_stream_sendmsg (net/unix/af_unix.c:2273)\\n\\t__sock_sendmsg (net/socket.c:730 net/socket.c:745)\\n\\t____sys_sendmsg (net/socket.c:2584)\\n\\t__sys_sendmmsg (net/socket.c:2638 net/socket.c:2724)\\n\\t__x64_sys_sendmmsg (net/socket.c:2753 net/socket.c:2750 net/socket.c:2750)\\n\\tx64_sys_call (arch/x86/entry/syscall_64.c:33)\\n\\tdo_syscall_64 (arch/x86/entry/common.c:?)\\n\\tentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)\\n\\n\\tvalue changed: 0x01 -\u003e 0x03\\n\\nThe line numbers are related to commit dd5a440a31fa (\\\"Linux 6.9-rc7\\\").\\n\\nCommit e1d09c2c2f57 (\\\"af_unix: Fix data races around sk-\u003esk_shutdown.\\\")\\naddressed a comparable issue in the past regarding sk-\u003esk_shutdown.\\nHowever, it overlooked resolving this particular data path.\\nThis patch only offending unix_stream_sendmsg() function, since the\\nother reads seem to be protected by unix_state_lock() as discussed in\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: af_unix: corrige ejecuci\u00f3ns de datos en unix_release_sock/unix_stream_sendmsg Se identific\u00f3 una condici\u00f3n de ejecuci\u00f3n de datos en af_unix. En una ruta de datos, la funci\u00f3n de escritura unix_release_sock() escribe at\u00f3micamente en sk-\u0026gt;sk_shutdown usando WRITE_ONCE. Sin embargo, en el lado del lector, unix_stream_sendmsg() no lo lee at\u00f3micamente. En consecuencia, este problema est\u00e1 provocando que se produzca el siguiente s\u00edmbolo de KCSAN: ERROR: KCSAN: data-race en unix_release_sock / unix_stream_sendmsg escribe (marcado) en 0xffff88867256ddbb de 1 byte por tarea 7270 en la CPU 28: unix_release_sock (net/unix/af_unix.c: 640) unix_release (net/unix/af_unix.c:1050) sock_close (net/socket.c:659 net/socket.c:1421) __fput (fs/file_table.c:422) __fput_sync (fs/file_table.c:508 ) __se_sys_close (fs/open.c:1559 fs/open.c:1541) __x64_sys_close (fs/open.c:1541) x64_sys_call (arch/x86/entry/syscall_64.c:33) do_syscall_64 (arch/x86/entry/ common.c:?) Entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) le\u00eddo en 0xffff88867256ddbb de 1 bytes por la tarea 989 en la CPU 14: unix_stream_sendmsg (net/unix/af_unix.c:2273) __sock_sendmsg (net/socket .c:730 net/socket.c:745) ____sys_sendmsg (net/socket.c:2584) __sys_sendmmsg (net/socket.c:2638 net/socket.c:2724) __x64_sys_sendmmsg (net/socket.c:2753 net/ socket.c:2750 net/socket.c:2750) x64_sys_call (arch/x86/entry/syscall_64.c:33) do_syscall_64 (arch/x86/entry/common.c:?) Entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64 .S:130) valor cambiado: 0x01 -\u0026gt; 0x03 Los n\u00fameros de l\u00ednea est\u00e1n relacionados con el commit dd5a440a31fa (\\\"Linux 6.9-rc7\\\"). El commit e1d09c2c2f57 (\\\"af_unix: corregir ejecuci\u00f3ns de datos alrededor de sk-\u0026gt;sk_shutdown.\\\") abord\u00f3 un problema comparable en el pasado con respecto a sk-\u0026gt;sk_shutdown. Sin embargo, pas\u00f3 por alto resolver esta ruta de datos en particular. Este parche solo ofende la funci\u00f3n unix_stream_sendmsg(), ya que las otras lecturas parecen estar protegidas por unix_state_lock() como se explica en\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0688d4e499bee3f2749bca27329bd128686230cb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4d51845d734a4c5d079e56e0916f936a55e15055\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/540bf24fba16b88c1b3b9353927204b4f1074e25\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8299e4d778f664b31b67cf4cf3d5409de2ecb92c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9aa8773abfa0e954136875b4cbf2df4cf638e8a5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a4c88072abcaca593cefe70f90e9d3707526e8f9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a52fa2addfcccc2c5a0217fd45562605088c018b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/de6641d213373fbde9bbdd7c4b552254bc9f82fe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fca6072e1a7b1e709ada5604b951513b89b4bd0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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