{ "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-2026-31546", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31546", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-04-24T14:33:14.572Z", "updatedAt": "2026-10-15T01:16:58.231Z", "importedAt": "2026-10-24T01:58:02.025Z", "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: bonding: fix NULL deref in bond_debug_rlb_hash_show", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bonding: fix NULL deref in bond_debug_rlb_hash_show\n\nrlb_clear_slave intentionally keeps RLB hash-table entries on\nthe rx_hashtbl_used_head list with slave set to NULL when no\nreplacement slave is available. However, bond_debug_rlb_hash_show\nvisites client_info->slave without checking if it's NULL.\n\nOther used-list iterators in bond_alb.c already handle this NULL-slave\nstate safely:\n\n- rlb_update_client returns early on !client_info->slave\n- rlb_req_update_slave_clients, rlb_clear_slave, and rlb_rebalance\ncompare slave values before visiting\n- lb_req_update_subnet_clients continues if slave is NULL\n\nThe following NULL deref crash can be trigger in\nbond_debug_rlb_hash_show:\n\n[ 1.289791] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[ 1.292058] RIP: 0010:bond_debug_rlb_hash_show (drivers/net/bonding/bond_debugfs.c:41)\n[ 1.293101] RSP: 0018:ffffc900004a7d00 EFLAGS: 00010286\n[ 1.293333] RAX: 0000000000000000 RBX: ffff888102b48200 RCX: ffff888102b48204\n[ 1.293631] RDX: ffff888102b48200 RSI: ffffffff839daad5 RDI: ffff888102815078\n[ 1.293924] RBP: ffff888102815078 R08: ffff888102b4820e R09: 0000000000000000\n[ 1.294267] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888100f929c0\n[ 1.294564] R13: ffff888100f92a00 R14: 0000000000000001 R15: ffffc900004a7ed8\n[ 1.294864] FS: 0000000001395380(0000) GS:ffff888196e75000(0000) knlGS:0000000000000000\n[ 1.295239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 1.295480] CR2: 0000000000000000 CR3: 0000000102adc004 CR4: 0000000000772ef0\n[ 1.295897] Call Trace:\n[ 1.296134] seq_read_iter (fs/seq_file.c:231)\n[ 1.296341] seq_read (fs/seq_file.c:164)\n[ 1.296493] full_proxy_read (fs/debugfs/file.c:378 (discriminator 1))\n[ 1.296658] vfs_read (fs/read_write.c:572)\n[ 1.296981] ksys_read (fs/read_write.c:717)\n[ 1.297132] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))\n[ 1.297325] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)\n\nAdd a NULL check and print \"(none)\" for entries with no assigned slave.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "caafa84251b886feb6cdf23d50e2cc99dcdaaaf3", "status": "affected", "versionType": "git", "lessThan": "19f0fd87df0e5746b24f5caa465a66a8c6e6e241" }, { "version": "caafa84251b886feb6cdf23d50e2cc99dcdaaaf3", "status": "affected", "versionType": "git", "lessThan": "edacf1613f7b26423ebfa8b2892e7453c4235354" }, { "version": "caafa84251b886feb6cdf23d50e2cc99dcdaaaf3", "status": "affected", "versionType": "git", "lessThan": "2ec2c777f357a83c3d503d8d9370c90b60f0ae63" }, { "version": "caafa84251b886feb6cdf23d50e2cc99dcdaaaf3", "status": "affected", "versionType": "git", "lessThan": "0a3f8cd3f370247ded14d38d216b49dd30eade76" }, { "version": "caafa84251b886feb6cdf23d50e2cc99dcdaaaf3", "status": "affected", "versionType": "git", "lessThan": "6a3bb74e25d79cbb15f67ef80f71e2b2bfe27ff4" }, { "version": "caafa84251b886feb6cdf23d50e2cc99dcdaaaf3", "status": "affected", "versionType": "git", "lessThan": "017d674cf6930e9586a29ee808c7ca09d1396d07" }, { "version": "caafa84251b886feb6cdf23d50e2cc99dcdaaaf3", "status": "affected", "versionType": "git", "lessThan": "ec9762f0df2f9fbe3f40a3bfa8aab8b2f721466c" }, { "version": "caafa84251b886feb6cdf23d50e2cc99dcdaaaf3", "status": "affected", "versionType": "git", "lessThan": "605b52497bf89b3b154674deb135da98f916e390" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.38", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.38" }, { "version": "5.10.253", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.203", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.167", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.130", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.78", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.20", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "6.19.10", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.19.*" }, { "version": "7.0", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }