{"id":"CVE-2025-21901","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Add sanity checks on rdev validity\n\nThere is a possibility that ulp_irq_stop and ulp_irq_start\ncallbacks will be called when the device is in detached sta…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Add sanity checks on rdev validity\n\nThere is a possibility that ulp_irq_stop and ulp_irq_start\ncallbacks will be called when the device is in detached sta…","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","CWE-476"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 6.12, < 6.12.18","linux_kernel >= 6.13, < 6.13.6","linux_kernel = 6.14"],"patched":["linux_kernel 6.13.6"],"published":"2025-04-01","updated":"2026-07-30","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-21901","references":[{"url":"https://git.kernel.org/stable/c/8cb0eef46d70a99c88c26a1addb7fd955242e0e6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/aed1bc673907e3df372b317c10ff2f3582f8bf1a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f0df225d12fcb049429fb5bf5122afe143c2dd15","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.0021,"epssPercentile":0.11522,"ingestedAt":"2026-07-30T06:53:10.887Z","slug":"CVE-2025-21901","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/bnxt_re: Add sanity checks on rdev validity\n\nThere is a possibility that ulp_irq_stop and ulp_irq_start\ncallbacks will be called when the device is in detached state.\nThis can cause a crash due to NULL pointer dereference as\nthe rdev is already freed.\n\n## Affected\n\n- `linux_kernel >= 6.12, < 6.12.18`\n- `linux_kernel >= 6.13, < 6.13.6`\n- `linux_kernel = 6.14`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.13.6`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}