{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43173","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-01T14:12:55.991Z","datePublished":"2026-05-06T11:27:48.097Z","dateUpdated":"2026-05-11T22:19:11.951Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:19:11.951Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: xscale: Check for PTP support properly\n\nIn ixp4xx_get_ts_info() ixp46x_ptp_find() is called\nunconditionally despite this feature only existing on\nixp46x, leading to the following splat from tcpdump:\n\nroot@OpenWrt:~# tcpdump -vv -X -i eth0\n(...)\nUnable to handle kernel NULL pointer dereference at virtual address\n  00000238 when read\n(...)\nCall trace:\n ptp_clock_index from ixp46x_ptp_find+0x1c/0x38\n ixp46x_ptp_find from ixp4xx_get_ts_info+0x4c/0x64\n ixp4xx_get_ts_info from __ethtool_get_ts_info+0x90/0x108\n __ethtool_get_ts_info from __dev_ethtool+0xa00/0x2648\n __dev_ethtool from dev_ethtool+0x160/0x234\n dev_ethtool from dev_ioctl+0x2cc/0x460\n dev_ioctl from sock_ioctl+0x1ec/0x524\n sock_ioctl from sys_ioctl+0x51c/0xa94\n sys_ioctl from ret_fast_syscall+0x0/0x44\n (...)\nSegmentation fault\n\nCheck for ixp46x in ixp46x_ptp_find() before trying to set up\nPTP to avoid this.\n\nTo avoid altering the returned error code from ixp4xx_hwtstamp_set()\nwhich before this patch was -EOPNOTSUPP, we return -EOPNOTSUPP\nfrom ixp4xx_hwtstamp_set() if ixp46x_ptp_find() fails no matter\nthe error code. The helper function ixp46x_ptp_find() helper\nreturns -ENODEV."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/xscale/ixp4xx_eth.c","drivers/net/ethernet/xscale/ptp_ixp46x.c"],"versions":[{"version":"9055a2f591629b952910503e72ddae1371c44bf1","lessThan":"144dde3146985b25fa84d4e4b7c3d11e0f5fc5a4","status":"affected","versionType":"git"},{"version":"9055a2f591629b952910503e72ddae1371c44bf1","lessThan":"5195b10c34b8993194ad12ad7d8f54d861be084b","status":"affected","versionType":"git"},{"version":"9055a2f591629b952910503e72ddae1371c44bf1","lessThan":"322437972f0a712767f6920ad34aba25f2e9b942","status":"affected","versionType":"git"},{"version":"9055a2f591629b952910503e72ddae1371c44bf1","lessThan":"21d1e80d0d6e7d0c3cd8b1e001ed1fa92fb9f3f5","status":"affected","versionType":"git"},{"version":"9055a2f591629b952910503e72ddae1371c44bf1","lessThan":"2d74412dfd3621552a394d55cc3dd26a7cbf608e","status":"affected","versionType":"git"},{"version":"9055a2f591629b952910503e72ddae1371c44bf1","lessThan":"cbecebd35909f6cd0f6fb773f0fb73da99e02f8c","status":"affected","versionType":"git"},{"version":"9055a2f591629b952910503e72ddae1371c44bf1","lessThan":"594163ea88a03bdb412063af50fc7177ef3cbeae","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/xscale/ixp4xx_eth.c","drivers/net/ethernet/xscale/ptp_ixp46x.c"],"versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","status":"unaffected","versionType":"semver"},{"version":"5.15.202","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.165","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.128","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.75","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.16","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.6","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/144dde3146985b25fa84d4e4b7c3d11e0f5fc5a4"},{"url":"https://git.kernel.org/stable/c/5195b10c34b8993194ad12ad7d8f54d861be084b"},{"url":"https://git.kernel.org/stable/c/322437972f0a712767f6920ad34aba25f2e9b942"},{"url":"https://git.kernel.org/stable/c/21d1e80d0d6e7d0c3cd8b1e001ed1fa92fb9f3f5"},{"url":"https://git.kernel.org/stable/c/2d74412dfd3621552a394d55cc3dd26a7cbf608e"},{"url":"https://git.kernel.org/stable/c/cbecebd35909f6cd0f6fb773f0fb73da99e02f8c"},{"url":"https://git.kernel.org/stable/c/594163ea88a03bdb412063af50fc7177ef3cbeae"}],"title":"net: ethernet: xscale: Check for PTP support properly","x_generator":{"engine":"bippy-1.2.0"}}}}