Unknown

CVE-2026-98074 — bonding: do not clear curr_active_slave prematurely when releasing all slaves

In the Linux kernel, the following vulnerability has been resolved: bonding: do not clear curr_active_slave prematurely when releasing all slaves When releasing all slaves during bond destruction (all == true), __bond_release_one() unconditionally clears bond->curr_active_slave to NULL in every iteration. If a backup slave is released before the active slave, bond_alb_deinit_slave() triggers rlb_teach_disabled_mac_on_primary(), which increments the active slave dev promiscuity counter and sets bond_info->primary_is_promisc = 1. Because bond->curr_active_slave was prematurely cleared to NULL when releasing the backup slave, the subsequent iteration releasing the active slave evaluates oldcurrent as NULL, so bond_change_active_slave(bond, NULL) is skipped. Consequently, bond_alb_handle_active_change() is never called to decrement the promiscuity counter, permanently leaking promiscuous mode on the physical device after bond teardown. When oldcurrent == slave, bond_change_active_slave(bond, NULL) already sets bond->curr_active_slave to NULL. We only need to avoid selecting a new active slave when all == true. Replace the if (all) branch with if (!all && oldcurrent == slave).

Published Sep 25, 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)+1

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

0.18%

ahead of 7% of scored CVEs · Oct 15, 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	≥ 0896341a44bf04bf6149d9307fe4686006f3eee1 and < b1ded242135071769902778dbab081e3fc09730f≥ 0896341a44bf04bf6149d9307fe4686006f3eee1 and < e39b203ec9e73852098d41b26386172d51babeb9≥ 0896341a44bf04bf6149d9307fe4686006f3eee1 and < 384739c631aa6749356ba062d6b7c9a484a733f6≥ 0896341a44bf04bf6149d9307fe4686006f3eee1 and < 7b435c69a30b40efc642de98b9bfa95fcf2ad4f0≥ 0896341a44bf04bf6149d9307fe4686006f3eee1 and < d6ef22e79c2be3612868daede0e9a84f05439d9e≥ 0896341a44bf04bf6149d9307fe4686006f3eee1 and < 19ba7ecfade159b3702c78a360fd7d971e2b7109≥ 0896341a44bf04bf6149d9307fe4686006f3eee1 and < 6d0ee411d5437f3d126ea6979acb83a8da29dc81≥ 0896341a44bf04bf6149d9307fe4686006f3eee1 and < af602c7aa5fedc9be3043244017aef4f26c96b70 and 1 more version 3.9	Vulnerable	CVE Program (cve.org) e CISA ADP

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 · → Undergoing Analysis
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Sep 25, 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/d6ef22e79c2be3612868daede0e9a84f05439d9e
NIST National Vulnerability Database
git.kernel.org/stable/c/384739c631aa6749356ba062d6b7c9a484a733f6
NIST National Vulnerability Database
git.kernel.org/stable/c/e39b203ec9e73852098d41b26386172d51babeb9
NIST National Vulnerability Database
git.kernel.org/stable/c/af602c7aa5fedc9be3043244017aef4f26c96b70
NIST National Vulnerability Database
git.kernel.org/stable/c/b1ded242135071769902778dbab081e3fc09730f
NIST National Vulnerability Database
git.kernel.org/stable/c/7b435c69a30b40efc642de98b9bfa95fcf2ad4f0
NIST National Vulnerability Database
git.kernel.org/stable/c/6d0ee411d5437f3d126ea6979acb83a8da29dc81
NIST National Vulnerability Database
git.kernel.org/stable/c/19ba7ecfade159b3702c78a360fd7d971e2b7109
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Critical CVE-2026-99999 ipv4: validate checksum_start before completing checksum 1d
Unknown CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period 1d
Unknown CVE-2026-98431 RDMA/uverbs: Fix mmap_lock/disassociation_lock circular dependency 2d
Unknown CVE-2026-98430 RDMA/efa: Keep admin queues alive while IRQ is registered 2d
Unknown CVE-2026-98429 RDMA/efa: Keep EQ resources alive while IRQ is registered 2d
Unknown CVE-2026-98428 ALSA: usb: 6fire: Avoid embedded URBs 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-2026-98074 is "bonding: do not clear curr_active_slave prematurely when releasing all slaves", 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 0.18% 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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