CVE-2024-46678: bonding: change ipsec_lock from spin lock to mutex

mediumCVSS 5.5CVE-2024-46678

CSIRTS triage

vendor: Linux product: BondingOther

What: The bonding driver uses a spin lock for ipsec_lock when a mutex is required for safe operation.
Who is affected: Linux systems with bonding driver in use for network interface aggregation.
Urgency: Medium severity (CVSS 5.5) with potential for deadlock or synchronization issues.
Action: Apply the Linux kernel patch that converts ipsec_lock from spin lock to mutex.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-46678

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2024-466780.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2024-46678	coverage & exploitation status	NVD · CVE.org

Recent advisories for bonding

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

highCVE-2026-74726: In the Linux kernel, the following vulnerability has been resolved: bonding: alb: re-check pri…nvd · 2026-08-22
highCVE-2026-16101: Spoofing an already bonded device can force either RS9116W or SiWx917 to re-pair/bond with a r…nvd · 2026-08-13
mediumCVE-2026-74726: bonding: alb: re-check primary_is_promisc under RTNL in bond_alb_monitormsrc · 2026-08-11
mediumCVE-2026-68336: bonding: fix devconf_all NULL dereference when IPv6 is disabledmsrc · 2026-08-11
unknownCVE-2026-68336: In the Linux kernel, the following vulnerability has been resolved: bonding: fix devconf_all N…nvd · 2026-08-10
mediumCVE-2026-43456: bonding: fix type confusion in bond_setup_by_slave()msrc · 2026-08-06