{"id":"CVE-2025-37813","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: xhci: Fix invalid pointer dereference in Etron workaround\n\nThis check is performed before prepare_transfer() and prepare_ring(), so\nenqueue can already point at th…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: xhci: Fix invalid pointer dereference in Etron workaround\n\nThis check is performed before prepare_transfer() and prepare_ring(), so\nenqueue can already point at th…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 6.6.66, < 6.6.89","linux_kernel >= 6.11.11, < 6.12","linux_kernel >= 6.12.2, < 6.12.26","linux_kernel >= 6.13, < 6.14.5","linux_kernel = 6.15"],"patched":["linux_kernel 6.14.5"],"published":"2025-05-08","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:18:18.577","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-37813","references":[{"url":"https://git.kernel.org/stable/c/0624e29c595b05e7a0e6d1c368f0a05799928e30","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/142273a49f2c315eabdbdf5a71c15e479b75ca91","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1ea050da5562af9b930d17cbbe9632d30f5df43a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bce3055b08e303e28a8751f6073066f5c33a0744","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.002,"epssPercentile":0.09697,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:45:20.958093Z"},"ingestedAt":"2026-10-15T22:48:25.479Z","slug":"CVE-2025-37813","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nusb: xhci: Fix invalid pointer dereference in Etron workaround\n\nThis check is performed before prepare_transfer() and prepare_ring(), so\nenqueue can already point at the final link TRB of a segment. And indeed\nit will, some 0.4% of times this code is called.\n\nThen enqueue + 1 is an invalid pointer. It will crash the kernel right\naway or load some junk which may look like a link TRB and cause the real\nlink TRB to be replaced with a NOOP. This wouldn't end well.\n\nUse a functionally equivalent test which doesn't dereference the pointer\nand always gives correct result.\n\nSomething has crashed my machine twice in recent days while playing with\nan Etron HC, and a control transfer stress test ran for confirmation has\njust crashed it again. The same test passes with this patch applied.\n\n## Affected\n\n- `linux_kernel >= 6.6.66, < 6.6.89`\n- `linux_kernel >= 6.11.11, < 6.12`\n- `linux_kernel >= 6.12.2, < 6.12.26`\n- `linux_kernel >= 6.13, < 6.14.5`\n- `linux_kernel = 6.15`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.14.5`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}