CVE-2026-53332 Affecting kernel-kvmsmall package, versions <6.12.0-160000.37.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-SLES1600-KERNELKVMSMALL-19327175
- published27 Aug 2026
- disclosed11 Aug 2026
Introduced: 11 Aug 2026
NewCVE-2026-53332 (opens in a new tab)How to fix?
Upgrade SLES:16.0.0 kernel-kvmsmall to version 6.12.0-160000.37.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-kvmsmall package and not the kernel-kvmsmall package as distributed by SLES.
See How to fix? for SLES:16.0.0 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
slimbus: qcom-ngd-ctrl: Register callbacks after creating the ngd
When the remoteproc starts in parallel with the NGD driver being probed, or the remoteproc is already up when the PDR lookup is being registered, or in the theoretical event that we get an interrupt from the hardware, these callbacks will operate on uninitialized data. This result in issues to boot the affected boards.
One such example can be seen in the following fault, where qcom_slim_ngd_ssr_pdr_notify() schedules work on the NULL ngd_up_work.
[ 21.858578] ------------[ cut here ]------------ [ 21.858745] WARNING: kernel/workqueue.c:2338 at __queue_work+0x5e0/0x790, CPU#2: kworker/2:2/116 ... [ 21.859251] Call trace: [ 21.859255] __queue_work+0x5e0/0x790 (P) [ 21.859265] queue_work_on+0x6c/0xf0 [ 21.859273] qcom_slim_ngd_ssr_pdr_notify+0x110/0x150 [slim_qcom_ngd_ctrl] [ 21.859304] qcom_slim_ngd_ssr_notify+0x24/0x40 [slim_qcom_ngd_ctrl] [ 21.859318] notifier_call_chain+0xa4/0x230 [ 21.859329] srcu_notifier_call_chain+0x64/0xb8 [ 21.859338] ssr_notify_start+0x40/0x78 [qcom_common] [ 21.859355] rproc_start+0x130/0x230 [ 21.859367] rproc_boot+0x3d4/0x518 ...
Move the enablement of interrupts, and the registration of SSR and PDR until after the NGD device has been registered.
This could be further refined by moving initialization to the control driver probe and by removing the platform driver model from the picture.
References
- https://www.suse.com/security/cve/CVE-2026-53332.html
- https://bugzilla.suse.com/1270102
- https://git.kernel.org/stable/c/08564e15c47a5fb0af6643a43ee15521d49bcdea
- https://git.kernel.org/stable/c/24ec89123fc9d0d24ce719dcf7fd6c57e5b0d753
- https://git.kernel.org/stable/c/2a9d50e9ea406e0c8735938484adc20515ef1b47
- https://git.kernel.org/stable/c/946b97d632f0f58a705dafac644c1e9346e01f35
- https://git.kernel.org/stable/c/fa3790c7ea98328ddc3f7d8bf40247556245a6fc
- https://git.kernel.org/stable/c/2047eeb38db878a31f58db19d98f8aedf284342e
- https://git.kernel.org/stable/c/290014c7987636e6105bba89fa04cb4d59f775c1
- https://git.kernel.org/stable/c/afc631e246936a40558f494112a4188401382671