{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-54155", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T13:02:52.530Z", "datePublished": "2025-12-24T13:07:05.385Z", "dateUpdated": "2025-12-24T13:07:05.385Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-24T13:07:05.385Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: core: remove unnecessary frame_sz check in bpf_xdp_adjust_tail()\n\nSyzkaller reported the following issue:\n=======================================\nToo BIG xdp->frame_sz = 131072\nWARNING: CPU: 0 PID: 5020 at net/core/filter.c:4121\n ____bpf_xdp_adjust_tail net/core/filter.c:4121 [inline]\nWARNING: CPU: 0 PID: 5020 at net/core/filter.c:4121\n bpf_xdp_adjust_tail+0x466/0xa10 net/core/filter.c:4103\n...\nCall Trace:\n <TASK>\n bpf_prog_4add87e5301a4105+0x1a/0x1c\n __bpf_prog_run include/linux/filter.h:600 [inline]\n bpf_prog_run_xdp include/linux/filter.h:775 [inline]\n bpf_prog_run_generic_xdp+0x57e/0x11e0 net/core/dev.c:4721\n netif_receive_generic_xdp net/core/dev.c:4807 [inline]\n do_xdp_generic+0x35c/0x770 net/core/dev.c:4866\n tun_get_user+0x2340/0x3ca0 drivers/net/tun.c:1919\n tun_chr_write_iter+0xe8/0x210 drivers/net/tun.c:2043\n call_write_iter include/linux/fs.h:1871 [inline]\n new_sync_write fs/read_write.c:491 [inline]\n vfs_write+0x650/0xe40 fs/read_write.c:584\n ksys_write+0x12f/0x250 fs/read_write.c:637\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nxdp->frame_sz > PAGE_SIZE check was introduced in commit c8741e2bfe87\n(\"xdp: Allow bpf_xdp_adjust_tail() to grow packet size\"). But Jesper\nDangaard Brouer <jbrouer@redhat.com> noted that after introducing the\nxdp_init_buff() which all XDP driver use - it's safe to remove this\ncheck. The original intend was to catch cases where XDP drivers have\nnot been updated to use xdp.frame_sz, but that is not longer a concern\n(since xdp_init_buff).\n\nRunning the initial syzkaller repro it was discovered that the\ncontiguous physical memory allocation is used for both xdp paths in\ntun_get_user(), e.g. tun_build_skb() and tun_alloc_skb(). It was also\nstated by Jesper Dangaard Brouer <jbrouer@redhat.com> that XDP can\nwork on higher order pages, as long as this is contiguous physical\nmemory (e.g. a page)."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/filter.c"], "versions": [{"version": "43b5169d8355ccf26d726fbc75f083b2429113e4", "lessThan": "a09c258cfa77d3ba0a7acc555c73eb6b005c4bd8", "status": "affected", "versionType": "git"}, {"version": "43b5169d8355ccf26d726fbc75f083b2429113e4", "lessThan": "20acffcdc2b74fb7dcc4e299f7aca173df89d911", "status": "affected", "versionType": "git"}, {"version": "43b5169d8355ccf26d726fbc75f083b2429113e4", "lessThan": "d9252d67ed2f921c230bba449ee051b5c32e4841", "status": "affected", "versionType": "git"}, {"version": "43b5169d8355ccf26d726fbc75f083b2429113e4", "lessThan": "d14eea09edf427fa36bd446f4a3271f99164202f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/filter.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.127", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.46", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.11", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.15.127"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.1.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.4.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a09c258cfa77d3ba0a7acc555c73eb6b005c4bd8"}, {"url": "https://git.kernel.org/stable/c/20acffcdc2b74fb7dcc4e299f7aca173df89d911"}, {"url": "https://git.kernel.org/stable/c/d9252d67ed2f921c230bba449ee051b5c32e4841"}, {"url": "https://git.kernel.org/stable/c/d14eea09edf427fa36bd446f4a3271f99164202f"}], "title": "net: core: remove unnecessary frame_sz check in bpf_xdp_adjust_tail()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: core: remove unnecessary frame_sz check in bpf_xdp_adjust_tail()\n\nSyzkaller reported the following issue:\n=======================================\nToo BIG xdp->frame_sz = 131072\nWARNING: CPU: 0 PID: 5020 at net/core/filter.c:4121\n ____bpf_xdp_adjust_tail net/core/filter.c:4121 [inline]\nWARNING: CPU: 0 PID: 5020 at net/core/filter.c:4121\n bpf_xdp_adjust_tail+0x466/0xa10 net/core/filter.c:4103\n...\nCall Trace:\n <TASK>\n bpf_prog_4add87e5301a4105+0x1a/0x1c\n __bpf_prog_run include/linux/filter.h:600 [inline]\n bpf_prog_run_xdp include/linux/filter.h:775 [inline]\n bpf_prog_run_generic_xdp+0x57e/0x11e0 net/core/dev.c:4721\n netif_receive_generic_xdp net/core/dev.c:4807 [inline]\n do_xdp_generic+0x35c/0x770 net/core/dev.c:4866\n tun_get_user+0x2340/0x3ca0 drivers/net/tun.c:1919\n tun_chr_write_iter+0xe8/0x210 drivers/net/tun.c:2043\n call_write_iter include/linux/fs.h:1871 [inline]\n new_sync_write fs/read_write.c:491 [inline]\n vfs_write+0x650/0xe40 fs/read_write.c:584\n ksys_write+0x12f/0x250 fs/read_write.c:637\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nxdp->frame_sz > PAGE_SIZE check was introduced in commit c8741e2bfe87\n(\"xdp: Allow bpf_xdp_adjust_tail() to grow packet size\"). But Jesper\nDangaard Brouer <jbrouer@redhat.com> noted that after introducing the\nxdp_init_buff() which all XDP driver use - it's safe to remove this\ncheck. The original intend was to catch cases where XDP drivers have\nnot been updated to use xdp.frame_sz, but that is not longer a concern\n(since xdp_init_buff).\n\nRunning the initial syzkaller repro it was discovered that the\ncontiguous physical memory allocation is used for both xdp paths in\ntun_get_user(), e.g. tun_build_skb() and tun_alloc_skb(). It was also\nstated by Jesper Dangaard Brouer <jbrouer@redhat.com> that XDP can\nwork on higher order pages, as long as this is contiguous physical\nmemory (e.g. a page)."}], "id": "CVE-2023-54155", "lastModified": "2025-12-29T15:58:13.147", "metrics": {}, "published": "2025-12-24T13:16:17.510", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/20acffcdc2b74fb7dcc4e299f7aca173df89d911"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a09c258cfa77d3ba0a7acc555c73eb6b005c4bd8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d14eea09edf427fa36bd446f4a3271f99164202f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d9252d67ed2f921c230bba449ee051b5c32e4841"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: net: core: remove unnecessary frame_sz check in bpf_xdp_adjust_tail()", "id": "2425206", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2425206"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2023-54155", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-54155\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-54155\nhttps://lore.kernel.org/linux-cve-announce/2025122427-CVE-2023-54155-e238@gregkh/T"], "threat_severity": "Moderate"}

{}