{"id":"CVE-2025-40070","revision":"c3e888ccd42c4ff2b9bc91308e3ab077","records":[{"revision":"c3e888ccd42c4ff2b9bc91308e3ab077","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-40070","aliases":[],"title":"pps: fix warning in pps_register_cdev when register device fail","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npps: fix warning in pps_register_cdev when register device fail\n\nSimilar to previous commit 2a934fdb01db (\"media: v4l2-dev: fix error\nhandling in __video_register_device()\"), the release hook should be set\nbefore device_register(). Otherwise, when device_register() return error\nand put_device() try to callback the release function, the below warning\nmay happen.\n\n ------------[ cut here ]------------\n WARNING: CPU: 1 PID: 4760 at drivers/base/core.c:2567 device_release+0x1bd/0x240 drivers/base/core.c:2567\n Modules linked in:\n CPU: 1 UID: 0 PID: 4760 Comm: syz.4.914 Not tainted 6.17.0-rc3+ #1 NONE\n RIP: 0010:device_release+0x1bd/0x240 drivers/base/core.c:2567\n Call Trace:\n \n kobject_cleanup+0x136/0x410 lib/kobject.c:689\n kobject_release lib/kobject.c:720 [inline]\n kref_put include/linux/kref.h:65 [inline]\n kobject_put+0xe9/0x130 lib/kobject.c:737\n put_device+0x24/0x30 drivers/base/core.c:3797\n pps_register_cdev+0x2da/0x370 drivers/pps/pps.c:402\n pps_register_source+0x2f6/0x480 drivers/pps/kapi.c:108\n pps_tty_open+0x190/0x310 drivers/pps/clients/pps-ldisc.c:57\n tty_ldisc_open+0xa7/0x120 drivers/tty/tty_ldisc.c:432\n tty_set_ldisc+0x333/0x780 drivers/tty/tty_ldisc.c:563\n tiocsetd drivers/tty/tty_io.c:2429 [inline]\n tty_ioctl+0x5d1/0x1700 drivers/tty/tty_io.c:2728\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:598 [inline]\n __se_sys_ioctl fs/ioctl.c:584 [inline]\n __x64_sys_ioctl+0x194/0x210 fs/ioctl.c:584\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0x5f/0x2a0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n \n\nBefore commit c79a39dc8d06 (\"pps: Fix a use-after-free\"),\npps_register_cdev() call device_create() to create pps->dev, which will\ninit dev->release to device_create_release(). Now the comment is outdated,\njust remove it.\n\nThanks for the reminder from Calvin Owens, 'kfree_pps' should be removed\nin pps_register_source() to avoid a double free in the failure case.","state":0,"publishedAt":"2025-10-28T11:48:38.838+00:00","modifiedAt":"2026-10-15T01:08:52.337+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/pps/kapi.c\",\n \"drivers/pps/pps.c\"\n ],\n \"versions\": [\n {\n \"version\": \"785c78ed0d39d1717cca3ef931d3e51337b5e90e\",\n \"lessThan\": \"38c7bb10aae5118dd48fa7a82f7bf93839bcc320\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1a7735ab2cb9747518a7416fb5929e85442dec62\",\n \"lessThan\": \"2a194707ca27a3b0523023fa8b446e5ec922dc51\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c4041b6b0a7a3def8cf3f3d6120ff337bc4c40f7\",\n \"lessThan\": \"125527db41805693208ee1aacd7f3ffe6a3a489c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"91932db1d96b2952299ce30c1c693d834d10ace6\",\n \"lessThan\": \"4cbd7450a22c5ee4842fc4175ad06c0c82ea53a8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"cd3bbcb6b3a7caa5ce67de76723b6d8531fb7f64\",\n \"lessThan\": \"cf71834a0cfc394c72d62fd6dbb470ee13cf8f5e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"7e5ee3281dc09014367f5112b6d566ba36ea2d49\",\n \"lessThan\": \"f01fa3588e0b3cb1540f56d2c6bd99e5b3810234\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c79a39dc8d060b9e64e8b0fa9d245d44befeefbe\",\n \"lessThan\": \"0f97564a1fb62f34b3b498e2f12caffbe99c004a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"c79a39dc8d060b9e64e8b0fa9d245d44befeefbe\",\n \"lessThan\": \"b0531cdba5029f897da5156815e3bdafe1e9b88d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"85241f7de216f8298f6e48540ea13d7dcd100870\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"5.4.291\",\n \"lessThan\": \"5.4.301\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.235\",\n \"lessThan\": \"5.10.246\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.179\",\n \"lessThan\": \"5.15.195\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.129\",\n \"lessThan\": \"6.1.156\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.76\",\n \"lessThan\": \"6.6.112\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.13\",\n \"lessThan\": \"6.12.53\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.13.2\",\n \"lessThan\": \"6.14\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/pps/kapi.c\",\n \"drivers/pps/pps.c\"\n ],\n \"versions\": [\n {\n \"version\": \"6.14\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"6.14\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.301\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.246\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.195\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.156\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.112\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.53\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.17.3\",\n \"lessThanOrEqual\": \"6.17.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/38c7bb10aae5118dd48fa7a82f7bf93839bcc320","https://git.kernel.org/stable/c/2a194707ca27a3b0523023fa8b446e5ec922dc51","https://git.kernel.org/stable/c/125527db41805693208ee1aacd7f3ffe6a3a489c","https://git.kernel.org/stable/c/4cbd7450a22c5ee4842fc4175ad06c0c82ea53a8","https://git.kernel.org/stable/c/cf71834a0cfc394c72d62fd6dbb470ee13cf8f5e","https://git.kernel.org/stable/c/f01fa3588e0b3cb1540f56d2c6bd99e5b3810234","https://git.kernel.org/stable/c/0f97564a1fb62f34b3b498e2f12caffbe99c004a","https://git.kernel.org/stable/c/b0531cdba5029f897da5156815e3bdafe1e9b88d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-40070","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-40070","identifiers":["CVE-2025-40070"]},"retained":false,"historicalAffected":[]}],"coverage":[]}