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CVE PROGRAM SOURCE RECORDUnscored

CVE-2025-38183

net: lan743x: fix potential out-of-bounds write in lan743x_ptp_io_event_clock_get()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: fix potential out-of-bounds write in lan743x_ptp_io_event_clock_get() Before calling lan743x_ptp_io_event_clock_get(), the 'channel' value is checked against the maximum value of PCI11X1X_PTP_IO_MAX_CHANNELS(8). This seems correct and aligns with the PTP interrupt status register (PTP_INT_STS) specifications. However, lan743x_ptp_io_event_clock_get() writes to ptp->extts[] with only LAN743X_PTP_N_EXTTS(4) elements, using channel as an index: lan743x_ptp_io_event_clock_get(..., u8 channel,...) { ... /* Update Local timestamp */ extts = &ptp->extts[channel]; extts->ts.tv_sec = sec; ... } To avoid an out-of-bounds write and utilize all the supported GPIO inputs, set LAN743X_PTP_N_EXTTS to 8. Detected using the static analysis tool - Svace.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 60942c397af6094c04406b77982314dfe69ef3c4 to < e8d48201a132f4aab31351c19a802c5a5ae820faaffected
  • 60942c397af6094c04406b77982314dfe69ef3c4 to < 66bba1fd5bad548c03f7e42669a59f3f4d8211ccaffected
  • 60942c397af6094c04406b77982314dfe69ef3c4 to < 41017bd66c533f7af912c58273c7dfd5de0065d4affected
  • 60942c397af6094c04406b77982314dfe69ef3c4 to < 4da0d23516857230b8e9b3022e25422ee2e2ba80affected
  • 60942c397af6094c04406b77982314dfe69ef3c4 to < e353b0854d3a1a31cb061df8d022fbfea53a0f24affected

Linux Linux

Default version status: affected

  • 5.18affected
  • 0 to < 5.18unaffected
  • 6.1.142 to ≤ 6.1.*unaffected
  • 6.6.95 to ≤ 6.6.*unaffected
  • 6.12.35 to ≤ 6.12.*unaffected
  • 6.15.4 to ≤ 6.15.*unaffected
  • 6.16 to ≤ *unaffected

References