Threats Tagged 'ubuntu-cve-2026-74740'
View all threats tagged with 'ubuntu-cve-2026-74740'. Filter and sort to focus on specific types of threats.
Stop chasing alerts. Route them.
Start free, then upgrade once to turn Radar into an automated delivery engine for your security stack.
Custom feeds / Automations: email, Slack, webhooks, SIEM/MISP / API access (baseline limits)
API access activates after upgrading in Console -> Billing.
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.
Filter Threats
Narrow down the results by type, severity, or affected countries
Threats Tagged 'ubuntu-cve-2026-74740'
Click on any threat for detailed analysis and mitigation recommendations
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: net/sched: act_api: fix TOCTOU NULL deref on a->goto_chain tcf_action_exec()… (CVE-2026-74740)CVE-2026-74740 0 In the Linux kernel, the following vulnerability has been resolved: net/sched: act_api: fix TOCTOU NULL deref on a->goto_chain tcf_action_exec() handles TC_ACT_GOTO_CHAIN by first checking rcu_access_pointer(a->goto_chain) and then calling tcf_action_goto_chain_exec(), which does a second, independent rcu_dereference_bh(a->goto_chain) read and immediately dereferences chain->filter_chain. A concurrent tcf_action_set_ctrlact() (e.g. the gact replace path) can clear a->goto_chain between the two reads, so the second read returns NULL and tcf_action_goto_chain_exec() dereferences NULL. Fix the race by doing a single rcu_dereference_bh() read of a->goto_chain in tcf_action_exec(), checking it once for NULL, and passing the resulting chain pointer into tcf_action_goto_chain_exec(). This turns the split check/use into a single check/use on one value. Join the discussion | GCVE Database | 08/26/2026, 15:16:00 UTC Added: 09/03/2026, 15:17:05 UTC |
Showing 1 to 1 of 1 result