CVE-2025-40070 (GCVE-0-2025-40070)

Vulnerability from cvelistv5 – Published: 2025-10-28 11:48 – Updated: 2026-07-14 12:43
VLAI
Title
pps: fix warning in pps_register_cdev when register device fail
Summary
In the Linux kernel, the following vulnerability has been resolved: pps: fix warning in pps_register_cdev when register device fail Similar to previous commit 2a934fdb01db ("media: v4l2-dev: fix error handling in __video_register_device()"), the release hook should be set before device_register(). Otherwise, when device_register() return error and put_device() try to callback the release function, the below warning may happen. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4760 at drivers/base/core.c:2567 device_release+0x1bd/0x240 drivers/base/core.c:2567 Modules linked in: CPU: 1 UID: 0 PID: 4760 Comm: syz.4.914 Not tainted 6.17.0-rc3+ #1 NONE RIP: 0010:device_release+0x1bd/0x240 drivers/base/core.c:2567 Call Trace: <TASK> kobject_cleanup+0x136/0x410 lib/kobject.c:689 kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0xe9/0x130 lib/kobject.c:737 put_device+0x24/0x30 drivers/base/core.c:3797 pps_register_cdev+0x2da/0x370 drivers/pps/pps.c:402 pps_register_source+0x2f6/0x480 drivers/pps/kapi.c:108 pps_tty_open+0x190/0x310 drivers/pps/clients/pps-ldisc.c:57 tty_ldisc_open+0xa7/0x120 drivers/tty/tty_ldisc.c:432 tty_set_ldisc+0x333/0x780 drivers/tty/tty_ldisc.c:563 tiocsetd drivers/tty/tty_io.c:2429 [inline] tty_ioctl+0x5d1/0x1700 drivers/tty/tty_io.c:2728 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl fs/ioctl.c:584 [inline] __x64_sys_ioctl+0x194/0x210 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x5f/0x2a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x76/0x7e </TASK> Before commit c79a39dc8d06 ("pps: Fix a use-after-free"), pps_register_cdev() call device_create() to create pps->dev, which will init dev->release to device_create_release(). Now the comment is outdated, just remove it. Thanks for the reminder from Calvin Owens, 'kfree_pps' should be removed in pps_register_source() to avoid a double free in the failure case.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 785c78ed0d39d1717cca3ef931d3e51337b5e90e , < 38c7bb10aae5118dd48fa7a82f7bf93839bcc320 (git)
Affected: 1a7735ab2cb9747518a7416fb5929e85442dec62 , < 2a194707ca27a3b0523023fa8b446e5ec922dc51 (git)
Affected: c4041b6b0a7a3def8cf3f3d6120ff337bc4c40f7 , < 125527db41805693208ee1aacd7f3ffe6a3a489c (git)
Affected: 91932db1d96b2952299ce30c1c693d834d10ace6 , < 4cbd7450a22c5ee4842fc4175ad06c0c82ea53a8 (git)
Affected: cd3bbcb6b3a7caa5ce67de76723b6d8531fb7f64 , < cf71834a0cfc394c72d62fd6dbb470ee13cf8f5e (git)
Affected: 7e5ee3281dc09014367f5112b6d566ba36ea2d49 , < f01fa3588e0b3cb1540f56d2c6bd99e5b3810234 (git)
Affected: c79a39dc8d060b9e64e8b0fa9d245d44befeefbe , < 0f97564a1fb62f34b3b498e2f12caffbe99c004a (git)
Affected: c79a39dc8d060b9e64e8b0fa9d245d44befeefbe , < b0531cdba5029f897da5156815e3bdafe1e9b88d (git)
Affected: 85241f7de216f8298f6e48540ea13d7dcd100870 (git)
Affected: 5.4.291 , < 5.4.301 (semver)
Affected: 5.10.235 , < 5.10.246 (semver)
Affected: 5.15.179 , < 5.15.195 (semver)
Affected: 6.1.129 , < 6.1.156 (semver)
Affected: 6.6.76 , < 6.6.112 (semver)
Affected: 6.12.13 , < 6.12.53 (semver)
Affected: 6.13.2 , < 6.14 (semver)
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Linux Linux Affected: 6.14
Unaffected: 0 , < 6.14 (semver)
Unaffected: 5.4.301 , ≤ 5.4.* (semver)
Unaffected: 5.10.246 , ≤ 5.10.* (semver)
Unaffected: 5.15.195 , ≤ 5.15.* (semver)
Unaffected: 6.1.156 , ≤ 6.1.* (semver)
Unaffected: 6.6.112 , ≤ 6.6.* (semver)
Unaffected: 6.12.53 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40070\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-28T12:15:41.493\",\"lastModified\":\"2026-07-14T13:17:52.567\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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   \u003cTASK\u003e\\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   \u003c/TASK\u003e\\n\\nBefore commit c79a39dc8d06 (\\\"pps: Fix a use-after-free\\\"),\\npps_register_cdev() call device_create() to create pps-\u003edev, which will\\ninit dev-\u003erelease to device_create_release(). Now the comment is outdated,\\njust remove it.\\n\\nThanks for the reminder from Calvin Owens, \u0027kfree_pps\u0027 should be removed\\nin pps_register_source() to avoid a double free in the failure case.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/pps/kapi.c\",\"drivers/pps/pps.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"785c78ed0d39d1717cca3ef931d3e51337b5e90e\",\"lessThan\":\"38c7bb10aae5118dd48fa7a82f7bf93839bcc320\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1a7735ab2cb9747518a7416fb5929e85442dec62\",\"lessThan\":\"2a194707ca27a3b0523023fa8b446e5ec922dc51\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c4041b6b0a7a3def8cf3f3d6120ff337bc4c40f7\",\"lessThan\":\"125527db41805693208ee1aacd7f3ffe6a3a489c\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"91932db1d96b2952299ce30c1c693d834d10ace6\",\"lessThan\":\"4cbd7450a22c5ee4842fc4175ad06c0c82ea53a8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"cd3bbcb6b3a7caa5ce67de76723b6d8531fb7f64\",\"lessThan\":\"cf71834a0cfc394c72d62fd6dbb470ee13cf8f5e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7e5ee3281dc09014367f5112b6d566ba36ea2d49\",\"lessThan\":\"f01fa3588e0b3cb1540f56d2c6bd99e5b3810234\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c79a39dc8d060b9e64e8b0fa9d245d44befeefbe\",\"lessThan\":\"0f97564a1fb62f34b3b498e2f12caffbe99c004a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c79a39dc8d060b9e64e8b0fa9d245d44befeefbe\",\"lessThan\":\"b0531cdba5029f897da5156815e3bdafe1e9b88d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"85241f7de216f8298f6e48540ea13d7dcd100870\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5.4.291\",\"lessThan\":\"5.4.301\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.10.235\",\"lessThan\":\"5.10.246\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.15.179\",\"lessThan\":\"5.15.195\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.1.129\",\"lessThan\":\"6.1.156\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.6.76\",\"lessThan\":\"6.6.112\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.12.13\",\"lessThan\":\"6.12.53\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.13.2\",\"lessThan\":\"6.14\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/pps/kapi.c\",\"drivers/pps/pps.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.14\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.14\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.301\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.246\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.195\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.156\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.112\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.53\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.17.3\",\"lessThanOrEqual\":\"6.17.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.6\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0f97564a1fb62f34b3b498e2f12caffbe99c004a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/125527db41805693208ee1aacd7f3ffe6a3a489c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2a194707ca27a3b0523023fa8b446e5ec922dc51\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/38c7bb10aae5118dd48fa7a82f7bf93839bcc320\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4cbd7450a22c5ee4842fc4175ad06c0c82ea53a8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b0531cdba5029f897da5156815e3bdafe1e9b88d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cf71834a0cfc394c72d62fd6dbb470ee13cf8f5e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f01fa3588e0b3cb1540f56d2c6bd99e5b3810234\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-019113.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T10:34:14+00:00",
      "cve": "CVE-2025-40070",
      "id": "CVE-2025-40070",
      "initial_release_date": "2025-10-28T00:00:00+00:00",
      "product_status:known_affected": "246",
      "product_status:known_not_affected": "28",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: pps: fix warning in pps_register_cdev when register device fail",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40070.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-15T05:58:44Z",
      "cve": "CVE-2025-40070",
      "id": "CVE-2025-40070",
      "initial_release_date": "2025-10-29T00:24:50Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "451",
      "product_status:known_not_affected": "181",
      "product_status:recommended": "502",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-40070",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-40070.json",
      "version": "37"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.