CVE-2026-72423

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard conntrack opts error writes The conntrack lookup and allocation kfuncs take an opts pointer together with an optssz argument. The verifier checks only the memory range described by optssz, but the wrappers...

CVE-2026-72422

Summary: CVE-2026-72422 fixes a use-after-free in ksmbd’s handling of conn->preauth_info during concurrent SMB2 NEGOTIATE on the same Linux kernel connection. The issue arose because the preauth_info state (shared across the negotiate and response paths) could be freed while a concurrent send-...

CVE-2026-72423 bpf: Guard conntrack opts error writes

In the Linux kernel, the following vulnerability has been resolved: bpf: Guard conntrack opts error writes The conntrack lookup and allocation kfuncs take an opts pointer together with an optssz argument. The verifier checks only the memory range described by optssz, but the wrappers...

CVE-2026-72421

CVE-2026-72421 : In the Linux kernel, a logic flaw in IPv4 route lookup under CONFIG_IP_MULTIPLE_TABLES can cause an error route from a merged local/main table to be overwritten by a route in the default table when no rule is added. The issue occurs in fib_lookup() where two tables are searched a...

EUVD-2026-59320

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: Don't ignore error route in local/main tables. When CONFIGIPMULTIPLETABLES is enabled but no rule is added, fiblookup performs route lookup directly on two tables. Since the first lookup does not properly bail out, the...

CVE-2026-72421 ipv4: fib: Don't ignore error route in local/main tables.

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: Don't ignore error route in local/main tables. When CONFIGIPMULTIPLETABLES is enabled but no rule is added, fiblookup performs route lookup directly on two tables. Since the first lookup does not properly bail out, the...

CVE-2026-72421

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: Don't ignore error route in local/main tables. When CONFIGIPMULTIPLETABLES is enabled but no rule is added, fiblookup performs route lookup directly on two tables. Since the first lookup does not properly bail out, the...

CVE-2026-72421 ipv4: fib: Don't ignore error route in local/main tables.

In the Linux kernel, the following vulnerability has been resolved: ipv4: fib: Don't ignore error route in local/main tables. When CONFIGIPMULTIPLETABLES is enabled but no rule is added, fiblookup performs route lookup directly on two tables. Since the first lookup does not properly bail out, the...

CVE-2026-72420 md/raid5: avoid R5_Overlap races while breaking stripe batches

In the Linux kernel, the following vulnerability has been resolved: md/raid5: avoid R5Overlap races while breaking stripe batches KCSAN report a race in breakstripebatchlist vs. raid5makerequest on sh-devi.flags plain word write vs. atomic bit op.. and .. one possible scenario is: CPU1 CPU2...

CVE-2026-72419 netfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnat: avoid invalid natnet pointer use on failed nfnatinit We ran into below KASAN splat, which is mostly uninteresting, beside for having nfnatregisterfn in the call chain as a cause for the offending access:...

CVE-2026-72420 md/raid5: avoid R5_Overlap races while breaking stripe batches

In the Linux kernel, the following vulnerability has been resolved: md/raid5: avoid R5Overlap races while breaking stripe batches KCSAN report a race in breakstripebatchlist vs. raid5makerequest on sh-devi.flags plain word write vs. atomic bit op.. and .. one possible scenario is: CPU1 CPU2...

CVE-2026-72419

The CVE-2026-72419 entry concerns the Linux kernel, specifically netfilter nf_nat/nf_tables paths. Description shows a fix for an invalid nat_net pointer use that could occur after nf_nat_init() fails, with an observed KASAN slab-out-of-bounds report in nf_nat_register_fn guarded by nf_tables cod...

EUVD-2026-59318

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnat: avoid invalid natnet pointer use on failed nfnatinit We ran into below KASAN splat, which is mostly uninteresting, beside for having nfnatregisterfn in the call chain as a cause for the offending access:...

CVE-2026-72419 netfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnat: avoid invalid natnet pointer use on failed nfnatinit We ran into below KASAN splat, which is mostly uninteresting, beside for having nfnatregisterfn in the call chain as a cause for the offending access:...

CVE-2026-72420

In the Linux kernel, the following vulnerability has been resolved: md/raid5: avoid R5Overlap races while breaking stripe batches KCSAN report a race in breakstripebatchlist vs. raid5makerequest on sh-devi.flags plain word write vs. atomic bit op.. and .. one possible scenario is: CPU1 CPU2...

CVE-2026-72419

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnat: avoid invalid natnet pointer use on failed nfnatinit We ran into below KASAN splat, which is mostly uninteresting, beside for having nfnatregisterfn in the call chain as a cause for the offending access:...

EUVD-2026-59319

In the Linux kernel, the following vulnerability has been resolved: md/raid5: avoid R5Overlap races while breaking stripe batches KCSAN report a race in breakstripebatchlist vs. raid5makerequest on sh-devi.flags plain word write vs. atomic bit op.. and .. one possible scenario is: CPU1 CPU2...

CVE-2026-72420

CVE-2026-72420 : In the Linux kernel, a race was reported between md/raid5 break_stripe_batch_list and raid5_make_request, involving sh->dev[i].flags (non-atomic write vs. atomic bit op) that could trigger a data race on R5_Overlap. The public descriptions provide a scenario where CPU1 clears ...

CVE-2026-72418 netfilter: nf_conncount: prevent connlimit drops for early confirmed ct

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconncount: prevent connlimit drops for early confirmed ct Commit 69894e5b4c5e "netfilter: nftconnlimit: update the count if add was skipped" introduced a regression where packets for valid connections are dropped whe...

CVE-2026-72418

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconncount: prevent connlimit drops for early confirmed ct Commit 69894e5b4c5e "netfilter: nftconnlimit: update the count if add was skipped" introduced a regression where packets for valid connections are dropped whe...