Unknown

CVE-2026-72048 — ieee802154: ca8210: fix cas_ctl leak on spi_async failure

In the Linux kernel, the following vulnerability has been resolved: ieee802154: ca8210: fix cas_ctl leak on spi_async failure ca8210_spi_transfer() allocates cas_ctl with kzalloc_obj(GFP_ATOMIC) and relies entirely on the SPI completion callback ca8210_spi_transfer_complete() to free it. The spi_async() API only invokes the completion callback on successful submission. On failure it returns a negative error code without ever queuing the callback, which leaves cas_ctl and its embedded spi_message and spi_transfer orphaned. Every kfree(cas_ctl) in the driver is inside the completion callback, so there is no other reclamation path. ca8210_spi_transfer() is called from ca8210_spi_exchange(), the interrupt handler ca8210_interrupt_handler(), and from the retry path inside the completion callback itself. The exchange and interrupt handler paths loop on -EBUSY, so under sustained SPI bus contention every retry iteration leaks a fresh cas_ctl (~600 bytes per occurrence). Fix it by freeing cas_ctl on the spi_async() error path. While here, correct the misleading error string: the function calls spi_async(), not spi_sync().

Published Aug 15, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+2

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.22%

ahead of 13% of scored CVEs · Oct 30, 2026

Affects

Linux

CVSS base

—

Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ ded845a781a578dfb0b5b2c138e5a067aa3b1242 and < 460c5cd51e4d7d15b317f178f42cfcb666c0fe91≥ ded845a781a578dfb0b5b2c138e5a067aa3b1242 and < b07aea90dbc6e188c74c100af64b77b9482ffc65≥ ded845a781a578dfb0b5b2c138e5a067aa3b1242 and < fe90605b651573d30be8293ff5be40e3d7023117≥ ded845a781a578dfb0b5b2c138e5a067aa3b1242 and < b9071dc7889bef42590e04fbf3e56cc65e1e5e6e≥ ded845a781a578dfb0b5b2c138e5a067aa3b1242 and < d4a397fe803c2d157f6ebb068b802ef75fbf109e≥ ded845a781a578dfb0b5b2c138e5a067aa3b1242 and < cb5cca1d2a908ddd5e357971de0f2009617b8d6a≥ ded845a781a578dfb0b5b2c138e5a067aa3b1242 and < 7e3630fbb6aabb844bbf35746dee0bf3894100c7≥ ded845a781a578dfb0b5b2c138e5a067aa3b1242 and < e09390e439bd7cca30dd10893b1f64802961667a and 1 more version 4.12	Vulnerable	CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 15, 2026 → Oct 30, 2026 · 15 reading(s) · max 0.22%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
Record published
Oct 15, 2026
Affected products added · linux/linux
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Aug 15, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

8 on the record

git.kernel.org/stable/c/7e3630fbb6aabb844bbf35746dee0bf3894100c7
NIST National Vulnerability Database
git.kernel.org/stable/c/e09390e439bd7cca30dd10893b1f64802961667a
NIST National Vulnerability Database
git.kernel.org/stable/c/b9071dc7889bef42590e04fbf3e56cc65e1e5e6e
NIST National Vulnerability Database
git.kernel.org/stable/c/460c5cd51e4d7d15b317f178f42cfcb666c0fe91
NIST National Vulnerability Database
git.kernel.org/stable/c/b07aea90dbc6e188c74c100af64b77b9482ffc65
NIST National Vulnerability Database
git.kernel.org/stable/c/d4a397fe803c2d157f6ebb068b802ef75fbf109e
NIST National Vulnerability Database
git.kernel.org/stable/c/cb5cca1d2a908ddd5e357971de0f2009617b8d6a
NIST National Vulnerability Database
git.kernel.org/stable/c/fe90605b651573d30be8293ff5be40e3d7023117
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Unknown CVE-2026-99216 Drivers: hv: Don't reset VMBus connection state on error/exit paths 2d
Unknown CVE-2026-99215 power: supply: core: prevent unregistering a power supply while a callback runs 2d
Unknown CVE-2026-99207 scsi: target: Disable interrupts while holding delayed_cmd_lock 2d
Unknown CVE-2026-99208 drm/xe/oa: Zero OA buffer at allocation 2d
Unknown CVE-2026-99209 drm/xe: skip eviction of a BO with no resource 2d
Unknown CVE-2026-99210 accel/rocket: clear rdev on device init failure 2d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CVSS score published by NVD, the CNA, CISA or GitHub so far.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-72048 is "ieee802154: ca8210: fix cas_ctl leak on spi_async failure", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.22% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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