CVE-2025-40070pps: fix warning in pps_register_cdev when register device fail
- —Not scoredno CVSS score yet
- 0.24%Exploitation in 30 daysEPSS · top 85% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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 Now the comment is outdated, just remove it.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.
Timeline
ID reserved
By Linux
- 7 months later
· 7 months later
Published
- 13 months later
· 13 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 785c78ed0d39d1717cca3ef931d3e51337b5e90e – < 38c7bb10aae5118dd48fa7a82f7bf93839bcc320
- affected 1a7735ab2cb9747518a7416fb5929e85442dec62 – < 2a194707ca27a3b0523023fa8b446e5ec922dc51
- affected c4041b6b0a7a3def8cf3f3d6120ff337bc4c40f7 – < 125527db41805693208ee1aacd7f3ffe6a3a489c
- affected 91932db1d96b2952299ce30c1c693d834d10ace6 – < 4cbd7450a22c5ee4842fc4175ad06c0c82ea53a8
- affected cd3bbcb6b3a7caa5ce67de76723b6d8531fb7f64 – < cf71834a0cfc394c72d62fd6dbb470ee13cf8f5e
- affected 7e5ee3281dc09014367f5112b6d566ba36ea2d49 – < f01fa3588e0b3cb1540f56d2c6bd99e5b3810234
- affected c79a39dc8d060b9e64e8b0fa9d245d44befeefbe – < 0f97564a1fb62f34b3b498e2f12caffbe99c004a
- affected c79a39dc8d060b9e64e8b0fa9d245d44befeefbe – < b0531cdba5029f897da5156815e3bdafe1e9b88d
- affected 85241f7de216f8298f6e48540ea13d7dcd100870
- affected 5.4.291 – < 5.4.301
- affected 5.10.235 – < 5.10.246
- affected 5.15.179 – < 5.15.195
- affected 6.1.129 – < 6.1.156
- affected 6.6.76 – < 6.6.112
- affected 6.12.13 – < 6.12.53
- affected 6.13.2 – < 6.14
- affected 6.14
- unaffected < 6.14
- unaffected 5.4.301 – ≤ 5.4.*
- unaffected 5.10.246 – ≤ 5.10.*
- unaffected 5.15.195 – ≤ 5.15.*
- unaffected 6.1.156 – ≤ 6.1.*
- unaffected 6.6.112 – ≤ 6.6.*
- unaffected 6.12.53 – ≤ 6.12.*
- unaffected 6.17.3 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References10
- https://git.kernel.org/stable/c/38c7bb10aae5118dd48fa7a82f7bf93839bcc320 (opens in a new tab)
- https://git.kernel.org/stable/c/2a194707ca27a3b0523023fa8b446e5ec922dc51 (opens in a new tab)
- https://git.kernel.org/stable/c/125527db41805693208ee1aacd7f3ffe6a3a489c (opens in a new tab)
- https://git.kernel.org/stable/c/4cbd7450a22c5ee4842fc4175ad06c0c82ea53a8 (opens in a new tab)
- https://git.kernel.org/stable/c/cf71834a0cfc394c72d62fd6dbb470ee13cf8f5e (opens in a new tab)
- https://git.kernel.org/stable/c/f01fa3588e0b3cb1540f56d2c6bd99e5b3810234 (opens in a new tab)
- https://git.kernel.org/stable/c/0f97564a1fb62f34b3b498e2f12caffbe99c004a (opens in a new tab)
- https://git.kernel.org/stable/c/b0531cdba5029f897da5156815e3bdafe1e9b88d (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-36458 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-40070)Record last updated .