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CVE-2023-54218 (GCVE-0-2023-54218)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:11 – Updated: 2026-05-11 19:57
VLAI
Title
net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs().
Summary
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
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6c7c98bad4883a4a8710c96b2b44de482865eb6e , < fd28692fa182d25e8d26bc1db506648839fde245 (git)
Affected: 6c7c98bad4883a4a8710c96b2b44de482865eb6e , < 564c3150ad357d571a0de7d8b644aa1f7e6e21b7 (git)
Affected: 6c7c98bad4883a4a8710c96b2b44de482865eb6e , < d7343f8de019ebb55b2b6ef79b971f6ceb361a99 (git)
Affected: 6c7c98bad4883a4a8710c96b2b44de482865eb6e , < d06f67b2b8dcd00d995c468428b6bccebc5762d8 (git)
Affected: 6c7c98bad4883a4a8710c96b2b44de482865eb6e , < de260d1e02cde39d317066835ee6e5234fc9f5a8 (git)
Affected: 6c7c98bad4883a4a8710c96b2b44de482865eb6e , < 7145f2309d649ad6273b9f66448321b9b4c523c8 (git)
Affected: 6c7c98bad4883a4a8710c96b2b44de482865eb6e , < 8319220054e5ea5f506d8d4c4b5e234f668ffc3b (git)
Affected: 6c7c98bad4883a4a8710c96b2b44de482865eb6e , < dfd9248c071a3710c24365897459538551cb7167 (git)
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Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 4.14.316 , ≤ 4.14.* (semver)
Unaffected: 4.19.284 , ≤ 4.19.* (semver)
Unaffected: 5.4.244 , ≤ 5.4.* (semver)
Unaffected: 5.10.181 , ≤ 5.10.* (semver)
Unaffected: 5.15.113 , ≤ 5.15.* (semver)
Unaffected: 6.1.30 , ≤ 6.1.* (semver)
Unaffected: 6.3.4 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: Fix load-tearing on sk-\u003esk_stamp in sock_recv_cmsgs().\n\nKCSAN found a data race in sock_recv_cmsgs() where the read access\nto sk-\u003esk_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 -\u003e 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"
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        {
          "url": "https://git.kernel.org/stable/c/dfd9248c071a3710c24365897459538551cb7167"
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      "title": "net: Fix load-tearing on sk-\u003esk_stamp in sock_recv_cmsgs().",
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    "cveId": "CVE-2023-54218",
    "datePublished": "2025-12-30T12:11:14.059Z",
    "dateReserved": "2025-12-30T12:06:44.501Z",
    "dateUpdated": "2026-05-11T19:57:44.055Z",
    "state": "PUBLISHED"
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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 -\u003e 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\":[{\"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\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:16:23+00:00",
      "cve": "CVE-2023-54218",
      "id": "CVE-2023-54218",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "170",
      "product_status:known_not_affected": "104",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: Fix load-tearing on sk-\u003esk_stamp in sock_recv_cmsgs()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54218.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.