{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-54218", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54218", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-12-30T12:11:14.059Z", "updatedAt": "2026-05-11T19:57:44.055Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs().", "summary": "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", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e", "status": "affected", "versionType": "git", "lessThan": "fd28692fa182d25e8d26bc1db506648839fde245" }, { "version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e", "status": "affected", "versionType": "git", "lessThan": "564c3150ad357d571a0de7d8b644aa1f7e6e21b7" }, { "version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e", "status": "affected", "versionType": "git", "lessThan": "d7343f8de019ebb55b2b6ef79b971f6ceb361a99" }, { "version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e", "status": "affected", "versionType": "git", "lessThan": "d06f67b2b8dcd00d995c468428b6bccebc5762d8" }, { "version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e", "status": "affected", "versionType": "git", "lessThan": "de260d1e02cde39d317066835ee6e5234fc9f5a8" }, { "version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e", "status": "affected", "versionType": "git", "lessThan": "7145f2309d649ad6273b9f66448321b9b4c523c8" }, { "version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e", "status": "affected", "versionType": "git", "lessThan": "8319220054e5ea5f506d8d4c4b5e234f668ffc3b" }, { "version": "6c7c98bad4883a4a8710c96b2b44de482865eb6e", "status": "affected", "versionType": "git", "lessThan": "dfd9248c071a3710c24365897459538551cb7167" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.12", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.12" }, { "version": "4.14.316", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.284", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.244", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.181", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.113", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.30", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.3.4", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.3.*" }, { "version": "6.4", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }