CVE-2023-54218
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs(). KCSAN found a data race in sock_recv_cmsgs() where the read access to sk->sk_stamp needs READ_ONCE(). BUG: KCSAN: data-race in packet_recvmsg / packet_recvmsg write (marked) to 0xffff88803c81f258 of 8 bytes by task 19171 on cpu 0: sock_write_timestamp include/net/sock.h:2670 [inline] sock_recv_cmsgs include/net/sock.h:2722 [inline] packet_recvmsg+0xb97/0xd00 net/packet/af_packet.c:3489 sock_recvmsg_nosec net/socket.c:1019 [inline] sock_recvmsg+0x11a/0x130 net/socket.c:1040 sock_read_iter+0x176/0x220 net/socket.c:1118 call_read_iter include/linux/fs.h:1845 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x5e0/0x630 fs/read_write.c:470 ksys_read+0x163/0x1a0 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x41/0x50 fs/read_write.c:621 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x72/0xdc read to 0xffff88803c81f258 of 8 bytes by task 19183 on cpu 1: sock_recv_cmsgs include/net/sock.h:2721 [inline] packet_recvmsg+0xb64/0xd00 net/packet/af_packet.c:3489 sock_recvmsg_nosec net/socket.c:1019 [inline] sock_recvmsg+0x11a/0x130 net/socket.c:1040 sock_read_iter+0x176/0x220 net/socket.c:1118 call_read_iter include/linux/fs.h:1845 [inline] new_sync_read fs/read_write.c:389 [inline] vfs_read+0x5e0/0x630 fs/read_write.c:470 ksys_read+0x163/0x1a0 fs/read_write.c:613 __do_sys_read fs/read_write.c:623 [inline] __se_sys_read fs/read_write.c:621 [inline] __x64_sys_read+0x41/0x50 fs/read_write.c:621 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x72/0xdc value changed: 0xffffffffc4653600 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 19183 Comm: syz-executor.5 Not tainted 6.3.0-rc7-02330-gca6270c12e20 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
View original CVE JSON
{
"id": "CVE-2023-54218",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-12-30T13:16:10.067",
"lastModified": "2026-10-28T19:10:00.193",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs().\n\nKCSAN found a data race in sock_recv_cmsgs() where the read access\nto sk->sk_stamp needs READ_ONCE().\n\nBUG: KCSAN: data-race in packet_recvmsg / packet_recvmsg\n\nwrite (marked) to 0xffff88803c81f258 of 8 bytes by task 19171 on cpu 0:\n sock_write_timestamp include/net/sock.h:2670 [inline]\n sock_recv_cmsgs include/net/sock.h:2722 [inline]\n packet_recvmsg+0xb97/0xd00 net/packet/af_packet.c:3489\n sock_recvmsg_nosec net/socket.c:1019 [inline]\n sock_recvmsg+0x11a/0x130 net/socket.c:1040\n sock_read_iter+0x176/0x220 net/socket.c:1118\n call_read_iter include/linux/fs.h:1845 [inline]\n new_sync_read fs/read_write.c:389 [inline]\n vfs_read+0x5e0/0x630 fs/read_write.c:470\n ksys_read+0x163/0x1a0 fs/read_write.c:613\n __do_sys_read fs/read_write.c:623 [inline]\n __se_sys_read fs/read_write.c:621 [inline]\n __x64_sys_read+0x41/0x50 fs/read_write.c:621\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nread to 0xffff88803c81f258 of 8 bytes by task 19183 on cpu 1:\n sock_recv_cmsgs include/net/sock.h:2721 [inline]\n packet_recvmsg+0xb64/0xd00 net/packet/af_packet.c:3489\n sock_recvmsg_nosec net/socket.c:1019 [inline]\n sock_recvmsg+0x11a/0x130 net/socket.c:1040\n sock_read_iter+0x176/0x220 net/socket.c:1118\n call_read_iter include/linux/fs.h:1845 [inline]\n new_sync_read fs/read_write.c:389 [inline]\n vfs_read+0x5e0/0x630 fs/read_write.c:470\n ksys_read+0x163/0x1a0 fs/read_write.c:613\n __do_sys_read fs/read_write.c:623 [inline]\n __se_sys_read fs/read_write.c:621 [inline]\n __x64_sys_read+0x41/0x50 fs/read_write.c:621\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nvalue changed: 0xffffffffc4653600 -> 0x0000000000000000\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 1 PID: 19183 Comm: syz-executor.5 Not tainted 6.3.0-rc7-02330-gca6270c12e20 #2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: Corrige el desgarro de carga en sk -> sk_stamp en sock_recv_cmsgs().\n\nKCSAN encontró una carrera de datos en sock_recv_cmsgs() donde el acceso de lectura a sk -> sk_stamp necesita READ_ONCE().\n\nERROR: KCSAN: carrera de datos en packet_recvmsg / packet_recvmsg\n\nescritura (marcada) a 0xffff88803c81f258 de 8 bytes por la tarea 19171 en la cpu 0:\n sock_write_timestamp include/net/sock.h:2670 [inline]\n sock_recv_cmsgs include/net/sock.h:2722 [inline]\n packet_recvmsg+0xb97/0xd00 net/packet/af_packet.c:3489\n sock_recvmsg_nosec net/socket.c:1019 [inline]\n sock_recvmsg+0x11a/0x130 net/socket.c:1040\n sock_read_iter+0x176/0x220 net/socket.c:1118\n call_read_iter include/linux/fs.h:1845 [inline]\n new_sync_read fs/read_write.c:389 [inline]\n vfs_read+0x5e0/0x630 fs/read_write.c:470\n ksys_read+0x163/0x1a0 fs/read_write.c:613\n __do_sys_read fs/read_write.c:623 [inline]\n __se_sys_read fs/read_write.c:621 [inline]\n __x64_sys_read+0x41/0x50 fs/read_write.c:621\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nlectura a 0xffff88803c81f258 de 8 bytes por la tarea 19183 en la cpu 1:\n sock_recv_cmsgs include/net/sock.h:2721 [inline]\n packet_recvmsg+0xb64/0xd00 net/packet/af_packet.c:3489\n sock_recvmsg_nosec net/socket.c:1019 [inline]\n sock_recvmsg+0x11a/0x130 net/socket.c:1040\n sock_read_iter+0x176/0x220 net/socket.c:1118\n call_read_iter include/linux/fs.h:1845 [inline]\n new_sync_read fs/read_write.c:389 [inline]\n vfs_read+0x5e0/0x630 fs/read_write.c:470\n ksys_read+0x163/0x1a0 fs/read_write.c:613\n __do_sys_read fs/read_write.c:623 [inline]\n __se_sys_read fs/read_write.c:621 [inline]\n __x64_sys_read+0x41/0x50 fs/read_write.c:621\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nvalor cambiado: 0xffffffffc4653600 -> 0x0000000000000000\n\nReportado por Kernel Concurrency Sanitizer en:\nCPU: 1 PID: 19183 Comm: syz-executor.5 No contaminado 6.3.0-rc7-02330-gca6270c12e20 #2\nNombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014"
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"include/net/sock.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e",
"lessThan": "fd28692fa182d25e8d26bc1db506648839fde245",
"versionType": "git",
"status": "affected"
},
{
"version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e",
"lessThan": "564c3150ad357d571a0de7d8b644aa1f7e6e21b7",
"versionType": "git",
"status": "affected"
},
{
"version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e",
"lessThan": "d7343f8de019ebb55b2b6ef79b971f6ceb361a99",
"versionType": "git",
"status": "affected"
},
{
"version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e",
"lessThan": "d06f67b2b8dcd00d995c468428b6bccebc5762d8",
"versionType": "git",
"status": "affected"
},
{
"version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e",
"lessThan": "de260d1e02cde39d317066835ee6e5234fc9f5a8",
"versionType": "git",
"status": "affected"
},
{
"version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e",
"lessThan": "7145f2309d649ad6273b9f66448321b9b4c523c8",
"versionType": "git",
"status": "affected"
},
{
"version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e",
"lessThan": "8319220054e5ea5f506d8d4c4b5e234f668ffc3b",
"versionType": "git",
"status": "affected"
},
{
"version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e",
"lessThan": "dfd9248c071a3710c24365897459538551cb7167",
"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"include/net/sock.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "4.12",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.12",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "4.14.316",
"lessThanOrEqual": "4.14.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "4.19.284",
"lessThanOrEqual": "4.19.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.4.244",
"lessThanOrEqual": "5.4.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.181",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.113",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.30",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.3.4",
"lessThanOrEqual": "6.3.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.4",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/564c3150ad357d571a0de7d8b644aa1f7e6e21b7",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7145f2309d649ad6273b9f66448321b9b4c523c8",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8319220054e5ea5f506d8d4c4b5e234f668ffc3b",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d06f67b2b8dcd00d995c468428b6bccebc5762d8",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d7343f8de019ebb55b2b6ef79b971f6ceb361a99",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/de260d1e02cde39d317066835ee6e5234fc9f5a8",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/dfd9248c071a3710c24365897459538551cb7167",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/fd28692fa182d25e8d26bc1db506648839fde245",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}