Bug 2516587 (CVE-2026-72060)

Summary: CVE-2026-72060 kernel: net: ethernet: ti: icssg: guard PA stat lookups
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's Texas Instruments (TI) Industrial Communication Subsystem Gigabit (ICSSG) ethernet driver. This vulnerability occurs because the driver attempts to read hardware performance statistics even when they are unavailable. This leads to the silent corruption of network interface counters, such as those for received errors or dropped packets, which can provide inaccurate information about network performance.
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Description OSIDB Bzimport 2026-08-15 06:20:26 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: ethernet: ti: icssg: guard PA stat lookups

icssg_ndo_get_stats64() unconditionally calls emac_get_stat_by_name()
with FW PA stat names regardless of whether the PA stats block is
present on the hardware.  emac_get_stat_by_name() already guards the
PA stats lookup with `if (emac->prueth->pa_stats)`; when that pointer
is NULL the lookup falls through to netdev_err() and returns -EINVAL.
Because ndo_get_stats64 is polled regularly by the networking stack
this produces thousands of log entries of the form:

  icssg-prueth icssg1-eth end0: Invalid stats FW_RX_ERROR

A secondary consequence is that the int(-EINVAL) return value is
implicitly widened to a near-ULLONG_MAX unsigned value when accumulated
into the __u64 fields of rtnl_link_stats64, silently corrupting the
rx_errors, rx_dropped and tx_dropped counters reported by `ip -s link`.

Every other PA-aware code path in the driver is already guarded with
the same `if (emac->prueth->pa_stats)` check.  Apply the same guard
here.
Comment 1 Keith Grant 2026-08-17 19:09:26 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081517-CVE-2026-72060-9fde@gregkh/T