CVE-2026-89501

HighCVSS 7.8/10Last modified Oct 19, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

ring-buffer: Hold cpu_buffer::lock when resizing a subbuf

Because, ring_buffer_subbuf_order_set() can clear cpu_buffer->free_page, hold cpu_buffer->lock to prevent races with ring_buffer_alloc_read_page() and ring_buffer_free_read_page().

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 8e7b58c27b3c567316a51079b375b846f9223bba, < 8a496aaa3da6e8d545896c2370c7e617cc931ae2; >= 8e7b58c27b3c567316a51079b375b846f9223bba, < 6fcb0b745a0b80df62eae4a93ce52a2d061f4ac2; >= 8e7b58c27b3c567316a51079b375b846f9223bba, < bf242baf58de03467f226c8e29554c9495dca7fc; >= 8e7b58c27b3c567316a51079b375b846f9223bba, < 24974bd0da1b47fd56c975533ead50abf754e74d
LinuxLinux6.8

References

Timeline

Published
Sep 11, 2026
Last modified
Oct 19, 2026
NVD status
Received

Related CVEs from 2026

CVE-2026-89502In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Free cpu_buffer::free_page with subbuf_order When sub-bufCVE-2026-895037.8In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix subbuf resize race with ring_buffer_alloc_read_page() CVE-2026-895048.4In the Linux kernel, the following vulnerability has been resolved: regulator: as3722_get_regulator_dt_data: fix premature of_node_put leavCVE-2026-89505In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Guard legacy bundles without method_elm The legacy write(CVE-2026-89506In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Add UVERBS_ATTR_UHW to UVERBS_METHOD_REG_MR The original CVE-2026-895077.8In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucma_write_cm_event() ctx->file may onlCVE-2026-895087.8In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucma_set_ib_path() ucma_set_ib_path() cCVE-2026-89509In the Linux kernel, the following vulnerability has been resolved: RDMA/ionic: Embed counter driver data in rdma_counter allocation CommiCVE-2026-89516.5Spoofing issue in the Toolbar component in Firefox for Android. This vulnerability was fixed in Firefox 151.CVE-2026-895107.8In the Linux kernel, the following vulnerability has been resolved: RDMA/cxgb4: Cancel reg_work before freeing device on remove c4iw_uld_sCVE-2026-895117.5In the Linux kernel, the following vulnerability has been resolved: qede: Fix NULL pointer dereference in TPA fragment processing Under meCVE-2026-89512In the Linux kernel, the following vulnerability has been resolved: remoteproc: scp: Fix device reference leak on failed lookup Make sure
CVE-2026-89501: High severity, CVSS 7.8 | Vulnix