EUVD-2026-59018
GHSA-h5ww-6qr3-gmcf
Lifecycle Timeline
2DescriptionCVE.org
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.
Analysis
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.
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External POC / Exploit Code
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