CVE catalog

CVE-2026-98418

In the Linux kernel, the following vulnerability has been resolved: sched/core: Avoid false migration warning for proxy donors Proxy execution can move a blocked donor's scheduling context to the lo

[CVE catalog]

Severity: Medium · CVSS 4.7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Published: Oct 14, 2026, 12:00:00 AM UTC
Updated: Oct 14, 2026, 2:17:53 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.21% · Oct 27, 2026

In the Linux kernel, the following vulnerability has been resolved: sched/core: Avoid false migration warning for proxy donors Proxy execution can move a blocked donor's scheduling context to the lock owner's CPU even when the donor is migration-disabled. The donor does not execute there, and its original execution CPU remains recorded in wake_cpu. set_task_cpu() warns unconditionally for migration-disabled tasks, so a subsequent proxy migration or the wakeup path returning the donor home triggers a false positive: moving a blocked scheduling context does not violate the migration-disabled execution context. For example, creating a mutex owner on CPU1 and a migration-disabled waiter on CPU0 can trigger the following warning: proxy_migrate_repro: donor blocking on CPU0 with migration disabled proxy_migrate_repro: donor moved from CPU0 to CPU1 WARNING: kernel/sched/core.c:3389 at set_task_cpu+0x1d3/0x280 ... Call Trace: try_to_wake_up+0x43f/0x780 __mutex_unlock_slowpath+0x330/0x540 owner_fn+0x9f/0xc0 [proxy_migrate_repro] ... proxy_migrate_repro: donor woke on CPU0, task_cpu=0 proxy_migrate_repro: completed Exclude blocked proxy donors from the warning. The proxy wakeup path restores an executable placement before clearing the blocked state.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	linux	sid	`7.2.13-1`	fixed
Debian	linux	forky	`7.2.12-1`	fixed
Debian	linux	trixie	`6.12.107-1`	not affected
Debian	linux	trixie-security	`6.12.113-1`	not affected
Debian	linux	bookworm	`6.1.176-1`	not affected
Debian	linux	bookworm-security	`6.1.190-1`	not affected
Linux	Kernel	Not reported	`7.2.8`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	linux	source	sid	`7.2.8-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	forky	`7.2.8-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	linux	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Linux	Kernel	Linux	Not reported	`7.2.8`	Not reported	CVE-2026-98418	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[bpftool]Not affected
Source package: [linux]
Details (6)
- 7.1.0+6.1.176-1 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 7.1.0+6.1.176-1 · arm64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 7.5.0+6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 7.5.0+6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 7.1.0+6.1.180-1 · amd64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
- 7.1.0+6.1.180-1 · arm64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
[hyperv-daemons]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
[intel-sdsi]Not affected
Source package: [linux]
Details (1)
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
[libcpupower1]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
[libcpupower-dev]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
[linux-bpf-dev]Not affected
Source package: [linux]
Details (2)
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
[linux-compiler-gcc-12-x86]Not affected
Source package: [linux]
Details (2)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
[linux-config-6.1]Not affected
Source package: [linux]
Details (4)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
[linux-cpupower]Not affected
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
[linux-doc]Not affected
Source package: [linux]
Details (32)
- 6.1.170-3 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.12.43-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.43-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.57-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.57-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.63-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.63-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.69-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.69-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.73-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.73-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.74-2~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.74-2~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.85-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.85-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.86-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.86-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.88-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.88-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.90-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.90-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.90-2~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.90-2~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.94-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.94-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · all · bookworm-backports
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
[linux-doc-6.1]Not affected
Source package: [linux]
Details (6)
- 6.1.170-3 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  nvd · linux · debian · bookworm
[linux-headers-6.1.0-47-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
[linux-headers-6.1.0-47-arm64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
[linux-headers-6.1.0-47-cloud-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
[linux-headers-6.1.0-47-cloud-arm64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
[linux-headers-6.1.0-47-common]Not affected
Source package: [linux]
Details (2)
- 6.1.170-3 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
[linux-headers-6.1.0-47-common-rt]Not affected
Source package: [linux]
Details (2)
- 6.1.170-3 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  nvd · linux · debian · bookworm
[linux-headers-6.1.0-47-rt-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
[linux-headers-6.1.0-47-rt-arm64]Not affected
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  nvd · linux · debian · bookworm
[linux-headers-6.1.0-50-amd64]Not affected
Source package: [linux]
Details (1)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  nvd · linux · debian · bookworm

Next results

Observed: Oct 27, 2026, 4:42:13 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]