{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"19f0fd87df0e5746b24f5caa465a66a8c6e6e241","status":"affected","version":"caafa84251b886feb6cdf23d50e2cc99dcdaaaf3","versionType":"git"},{"lessThan":"edacf1613f7b26423ebfa8b2892e7453c4235354","status":"affected","version":"caafa84251b886feb6cdf23d50e2cc99dcdaaaf3","versionType":"git"},{"lessThan":"2ec2c777f357a83c3d503d8d9370c90b60f0ae63","status":"affected","version":"caafa84251b886feb6cdf23d50e2cc99dcdaaaf3","versionType":"git"},{"lessThan":"0a3f8cd3f370247ded14d38d216b49dd30eade76","status":"affected","version":"caafa84251b886feb6cdf23d50e2cc99dcdaaaf3","versionType":"git"},{"lessThan":"6a3bb74e25d79cbb15f67ef80f71e2b2bfe27ff4","status":"affected","version":"caafa84251b886feb6cdf23d50e2cc99dcdaaaf3","versionType":"git"},{"lessThan":"017d674cf6930e9586a29ee808c7ca09d1396d07","status":"affected","version":"caafa84251b886feb6cdf23d50e2cc99dcdaaaf3","versionType":"git"},{"lessThan":"ec9762f0df2f9fbe3f40a3bfa8aab8b2f721466c","status":"affected","version":"caafa84251b886feb6cdf23d50e2cc99dcdaaaf3","versionType":"git"},{"lessThan":"605b52497bf89b3b154674deb135da98f916e390","status":"affected","version":"caafa84251b886feb6cdf23d50e2cc99dcdaaaf3","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"2.6.38"},{"lessThan":"2.6.38","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]}],"cveId":"CVE-2026-31546","cwes":[],"description":"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.","epss":{"date":"2026-11-05","percentile":0.02539,"score":0.00129},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793915107401,"publishedAt":1777041194572,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/19f0fd87df0e5746b24f5caa465a66a8c6e6e241"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/edacf1613f7b26423ebfa8b2892e7453c4235354"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/2ec2c777f357a83c3d503d8d9370c90b60f0ae63"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/0a3f8cd3f370247ded14d38d216b49dd30eade76"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/6a3bb74e25d79cbb15f67ef80f71e2b2bfe27ff4"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/017d674cf6930e9586a29ee808c7ca09d1396d07"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/ec9762f0df2f9fbe3f40a3bfa8aab8b2f721466c"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/605b52497bf89b3b154674deb135da98f916e390"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}],"remediation":[],"revision":"61fbcb0d335dc02c459bf460aa5c980e07628d9ceea6fb6fcef847c32ce0c387","sources":[{"modifiedAt":1793915107401,"name":"CNA: Linux","retrievedAt":1793917094046,"url":"https://www.cve.org/CVERecord?id=CVE-2026-31546"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793917102068,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-31546"}],"ssvc":{"assessedAt":1793914707031,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"net: bonding: fix NULL deref in bond_debug_rlb_hash_show","updatedAt":1793917102068}