🔐 CVE Alert

CVE-2026-53314

UNKNOWN 0.0

padata: Put CPU offline callback in ONLINE section to allow failure

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th

In the Linux kernel, the following vulnerability has been resolved: padata: Put CPU offline callback in ONLINE section to allow failure syzbot reported the following warning: DEAD callback error for CPU1 WARNING: kernel/cpu.c:1463 at _cpu_down+0x759/0x1020 kernel/cpu.c:1463, CPU#0: syz.0.1960/14614 at commit 4ae12d8bd9a8 ("Merge tag 'kbuild-fixes-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux") which tglx traced to padata_cpu_dead() given it's the only sub-CPUHP_TEARDOWN_CPU callback that returns an error. Failure isn't allowed in hotplug states before CPUHP_TEARDOWN_CPU so move the CPU offline callback to the ONLINE section where failure is possible.

Vendor linux
Product linux
Ecosystems
Industries
Technology
Published Jun 26, 2026
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Affected Versions

Linux / Linux
894c9ef9780c5cf2f143415e867ee39a33ecb75d < 65dae8b34f0810f3fa9f77c4c63650cd20820693 894c9ef9780c5cf2f143415e867ee39a33ecb75d < a6d44f477000c6352de6b05e9e276e62083e5fbf 894c9ef9780c5cf2f143415e867ee39a33ecb75d < 3e6c08dd97dcd22a00aee469e0adfa819071d80e 894c9ef9780c5cf2f143415e867ee39a33ecb75d < 5a9f29a3e076b637d2234093e57989cf755ded5b 894c9ef9780c5cf2f143415e867ee39a33ecb75d < 9afe53f14a2aae8c4beb30e5ea51641a34f1a3d3 894c9ef9780c5cf2f143415e867ee39a33ecb75d < c8c4a2972f83c8b68ff03b43cecdb898939ff851 2b1207801c393a5e9af2fbac2dd8b0377d8ae63a 0685dfa0a2ff7635c0b64f7b7f0fafbf1c3e0c14 3f4d3d010477365ee1aefedc3ad52563740b777e 4.19.202 < 4.20 5.4.22 < 5.5 5.5.6 < 5.6
Linux / Linux
5.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗
git.kernel.org: https://git.kernel.org/stable/c/65dae8b34f0810f3fa9f77c4c63650cd20820693 git.kernel.org: https://git.kernel.org/stable/c/a6d44f477000c6352de6b05e9e276e62083e5fbf git.kernel.org: https://git.kernel.org/stable/c/3e6c08dd97dcd22a00aee469e0adfa819071d80e git.kernel.org: https://git.kernel.org/stable/c/5a9f29a3e076b637d2234093e57989cf755ded5b git.kernel.org: https://git.kernel.org/stable/c/9afe53f14a2aae8c4beb30e5ea51641a34f1a3d3 git.kernel.org: https://git.kernel.org/stable/c/c8c4a2972f83c8b68ff03b43cecdb898939ff851