{"id":"CVE-2025-21914","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nslimbus: messaging: Free transaction ID in delayed interrupt scenario\n\nIn case of interrupt delay for any reason, slim_do_transfer()\nreturns timeout error but the trans…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nslimbus: messaging: Free transaction ID in delayed interrupt scenario\n\nIn case of interrupt delay for any reason, slim_do_transfer()\nreturns timeout error but the trans…","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-787"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.16, < 5.4.291","linux_kernel >= 5.5, < 5.10.235","linux_kernel >= 5.11, < 5.15.179","linux_kernel >= 5.16, < 6.1.131","linux_kernel >= 6.2, < 6.6.83","linux_kernel >= 6.7, < 6.12.19","linux_kernel >= 6.13, < 6.13.7","linux_kernel = 6.14"],"patched":["linux_kernel 6.13.7"],"published":"2025-04-01","updated":"2026-07-30","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-21914","references":[{"url":"https://git.kernel.org/stable/c/09d34c4cbc38485c7514069f25348e439555b282","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/0c541c8f6da23e0b92f0a6216d899659a7572074","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/18ae4cee05c310c299ba75d7477dcf34be67aa16","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6abf3d8bb51cbaf886c3f08109a0462890b10db6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a32e5198a9134772eb03f7b72a7849094c55bda9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cec8c0ac173fe5321f03fdb1a09a9cb69bc9a9fe","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dcb0d43ba8eb9517e70b1a0e4b0ae0ab657a0e5a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/faac8e894014e8167471a8e4a5eb35a8fefbb82a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00222,"epssPercentile":0.11311,"ingestedAt":"2026-07-30T06:53:10.940Z","slug":"CVE-2025-21914","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nslimbus: messaging: Free transaction ID in delayed interrupt scenario\n\nIn case of interrupt delay for any reason, slim_do_transfer()\nreturns timeout error but the transaction ID (TID) is not freed.\nThis results into invalid memory access inside\nqcom_slim_ngd_rx_msgq_cb() due to invalid TID.\n\nFix the issue by freeing the TID in slim_do_transfer() before\nreturning timeout error to avoid invalid memory access.\n\nCall trace:\n__memcpy_fromio+0x20/0x190\nqcom_slim_ngd_rx_msgq_cb+0x130/0x290 [slim_qcom_ngd_ctrl]\nvchan_complete+0x2a0/0x4a0\ntasklet_action_common+0x274/0x700\ntasklet_action+0x28/0x3c\n_stext+0x188/0x620\nrun_ksoftirqd+0x34/0x74\nsmpboot_thread_fn+0x1d8/0x464\nkthread+0x178/0x238\nret_from_fork+0x10/0x20\nCode: aa0003e8 91000429 f100044a 3940002b (3800150b)\n---[ end trace 0fe00bec2b975c99 ]---\nKernel panic - not syncing: Oops: Fatal exception in interrupt.\n\n## Affected\n\n- `linux_kernel >= 4.16, < 5.4.291`\n- `linux_kernel >= 5.5, < 5.10.235`\n- `linux_kernel >= 5.11, < 5.15.179`\n- `linux_kernel >= 5.16, < 6.1.131`\n- `linux_kernel >= 6.2, < 6.6.83`\n- `linux_kernel >= 6.7, < 6.12.19`\n- `linux_kernel >= 6.13, < 6.13.7`\n- `linux_kernel = 6.14`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.13.7`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}