{"id":"CVE-2026-23119","state":"PUBLISHED","title":"bonding: provide a net pointer to __skb_flow_dissect()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: provide a net pointer to __skb_flow_dissect()\n\nAfter 3cbf4ffba5ee (\"net: plumb network namespace into __skb_flow_dissect\")\nwe have to provide a net pointer to __skb_flow_dissect(),\neither via skb->dev, skb->sk, or a user provided pointer.\n\nIn the following case, syzbot was able to cook a bare skb.\n\nWARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053\nCall Trace:\n <TASK>\n  bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline]\n  __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157\n  bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline]\n  bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline]\n  bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515\n  xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388\n  bpf_prog_run_xdp include/net/xdp.h:700 [inline]\n  bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421\n  bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390\n  bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703\n  __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182\n  __do_sys_bpf kernel/bpf/syscall.c:6274 [inline]\n  __se_sys_bpf kernel/bpf/syscall.c:6272 [inline]\n  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94","publishedAt":"2026-02-14T15:09:50.517Z","updatedAt":"2026-10-19T18:25:31.818Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"8e53780732ee881394406f79da5263b81eb48f7e","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"3be945abdd228fd00f6afcf8d137002867a4651b","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"f4faaa1297ecf3255a8591fff2633df05bd5ec84","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"0efee0b992f28bd5ee01c7a86ef6a307c42eb907","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"de97735a40a144974bf3896ee4cc0270db2e47db","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"5f9b329096596b7e53e07d041d7fca4cbe1be752","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/bonding/bond_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","versionType":"semver"},{"version":"5.10.249","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/bonding/bond_main.c"]}],"references":["https://git.kernel.org/stable/c/8e53780732ee881394406f79da5263b81eb48f7e","https://git.kernel.org/stable/c/3be945abdd228fd00f6afcf8d137002867a4651b","https://git.kernel.org/stable/c/f4faaa1297ecf3255a8591fff2633df05bd5ec84","https://git.kernel.org/stable/c/0efee0b992f28bd5ee01c7a86ef6a307c42eb907","https://git.kernel.org/stable/c/bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa","https://git.kernel.org/stable/c/de97735a40a144974bf3896ee4cc0270db2e47db","https://git.kernel.org/stable/c/5f9b329096596b7e53e07d041d7fca4cbe1be752"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23119.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23119","state":"PUBLISHED","datePublished":"2026-02-14T15:09:50.517Z","dateUpdated":"2026-10-19T18:25:31.818Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.969Z"},"containers":{"cna":{"title":"bonding: provide a net pointer to __skb_flow_dissect()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: provide a net pointer to __skb_flow_dissect()\n\nAfter 3cbf4ffba5ee (\"net: plumb network namespace into __skb_flow_dissect\")\nwe have to provide a net pointer to __skb_flow_dissect(),\neither via skb->dev, skb->sk, or a user provided pointer.\n\nIn the following case, syzbot was able to cook a bare skb.\n\nWARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053\nCall Trace:\n <TASK>\n  bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline]\n  __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157\n  bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline]\n  bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline]\n  bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515\n  xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388\n  bpf_prog_run_xdp include/net/xdp.h:700 [inline]\n  bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421\n  bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390\n  bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703\n  __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182\n  __do_sys_bpf kernel/bpf/syscall.c:6274 [inline]\n  __se_sys_bpf kernel/bpf/syscall.c:6272 [inline]\n  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"8e53780732ee881394406f79da5263b81eb48f7e","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"3be945abdd228fd00f6afcf8d137002867a4651b","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"f4faaa1297ecf3255a8591fff2633df05bd5ec84","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"0efee0b992f28bd5ee01c7a86ef6a307c42eb907","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"de97735a40a144974bf3896ee4cc0270db2e47db","versionType":"git"},{"version":"58deb77cc52da9360d20676e68dd215742cbe473","status":"affected","lessThan":"5f9b329096596b7e53e07d041d7fca4cbe1be752","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/bonding/bond_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.5","versionType":"semver"},{"version":"5.10.249","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/bonding/bond_main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/8e53780732ee881394406f79da5263b81eb48f7e"},{"url":"https://git.kernel.org/stable/c/3be945abdd228fd00f6afcf8d137002867a4651b"},{"url":"https://git.kernel.org/stable/c/f4faaa1297ecf3255a8591fff2633df05bd5ec84"},{"url":"https://git.kernel.org/stable/c/0efee0b992f28bd5ee01c7a86ef6a307c42eb907"},{"url":"https://git.kernel.org/stable/c/bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa"},{"url":"https://git.kernel.org/stable/c/de97735a40a144974bf3896ee4cc0270db2e47db"},{"url":"https://git.kernel.org/stable/c/5f9b329096596b7e53e07d041d7fca4cbe1be752"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:00:29.775Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.249"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.15.199"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.12.68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-23119","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-06-10T20:40:46.406465Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","type":"CWE","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-19T18:25:31.818Z"}}]}}}