CVE-2026-98501HID: alps: fix use-after-free on input2 registration failure
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: HID: alps: fix use-after-free on input2 registration failure alps_input_configured() stores data->input2 before calling input_register_device(). If registration fails, input_free_device() frees the input device but data->input2 still points to the freed memory. alps_input_configured() calls hid_hw_open() before allocating input2, so URBs are already active and raw_event can fire during the failure window. A U1_SP_ABSOLUTE_REPORT_ID report arriving then causes u1_raw_event() to dereference the freed data->input2 -> use-after-free. Fix by only storing input2 into drvdata after successful registration and adding a NULL guard in the raw_event path.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | 2562756dde550901c224e3805102bdfc17e7d13a builds before 64f824dccfd316fd3db8ea1cc4e8a76ad6a02740; 2562756dde550901c224e3805102bdfc17e7d13a builds before 2e55d76e6e8a756f6d87c241de975599f82b02fa; from 2562756dde550901c224e3805102bdfc17e7d13a before ef8ca5bb4c8b9696f38b1bebce1c851baa02b77b; 2562756dde550901c224e3805102bdfc17e7d13a builds before 5a8ad63158165bacd6a1d7420e0fe5364c913b06; 2562756dde550901c224e3805102bdfc17e7d13a builds before 47e5e177e9e4e10da6f2759d5ce8d049e33efdc4; 2562756dde550901c224e3805102bdfc17e7d13a builds before 925da1d2a24787f24872de13a4680437c54de179; 2562756dde550901c224e3805102bdfc17e7d13a builds before 443f6b93442b10b972a16f57ceaaea75b77892b6; from 2562756dde550901c224e3805102bdfc17e7d13a before d3aba3442798ce4a4c8ce3104d7b286d61e605f9 | CNA record |
References
- https://git.kernel.org/stable/c/64f824dccfd316fd3db8ea1cc4e8a76ad6a02740
- https://git.kernel.org/stable/c/2e55d76e6e8a756f6d87c241de975599f82b02fa
- https://git.kernel.org/stable/c/ef8ca5bb4c8b9696f38b1bebce1c851baa02b77b
- https://git.kernel.org/stable/c/5a8ad63158165bacd6a1d7420e0fe5364c913b06
- https://git.kernel.org/stable/c/47e5e177e9e4e10da6f2759d5ce8d049e33efdc4
- https://git.kernel.org/stable/c/925da1d2a24787f24872de13a4680437c54de179
- https://git.kernel.org/stable/c/443f6b93442b10b972a16f57ceaaea75b77892b6
- https://git.kernel.org/stable/c/d3aba3442798ce4a4c8ce3104d7b286d61e605f9
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.