CVE-2026-23237None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: platform/x86: classmate-laptop: Add missing NULL pointer checks In a few places in the Classmate laptop driver, code using the accel object may run before that object'…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: classmate-laptop: Add missing NULL pointer checks
In a few places in the Classmate laptop driver, code using the accel object may run before that object's address is stored in the driver data of the input device using it.
For example, cmpc_accel_sensitivity_store_v4() is the "show" method of cmpc_accel_sensitivity_attr_v4 which is added in cmpc_accel_add_v4(), before calling dev_set_drvdata() for inputdev->dev. If the sysfs attribute is accessed prematurely, the dev_get_drvdata(&inputdev->dev) call in in cmpc_accel_sensitivity_store_v4() returns NULL which leads to a NULL pointer dereference going forward.
Moreover, sysfs attributes using the input device are added before initializing that device by cmpc_add_acpi_notify_device() and if one of them is accessed before running that function, a NULL pointer dereference will occur.
For example, cmpc_accel_sensitivity_attr_v4 is added before calling cmpc_add_acpi_notify_device() and if it is read prematurely, the dev_get_drvdata(&acpi->dev) call in cmpc_accel_sensitivity_show_v4() returns NULL which leads to a NULL pointer dereference going forward.
Fix this by adding NULL pointer checks in all of the relevant places.
Linux >= 529aa8cb0a59367d08883f818e8c47028e819d0d < 993708fc18d0d0919db438361b4e8c1f980a8d1bLinux >= 529aa8cb0a59367d08883f818e8c47028e819d0d < af673209d43b46257540997aba042b90ef3258c0Linux >= 529aa8cb0a59367d08883f818e8c47028e819d0d < eb214804f03c829decf10998e9b7dd26f4c8ab9eLinux >= 529aa8cb0a59367d08883f818e8c47028e819d0d < 9cf4b9b8ad09d6e05307abc4e951cabdff4be652Linux >= 529aa8cb0a59367d08883f818e8c47028e819d0d < da6e06a5fdbabea3870d18c227734b5dea5b3be6Linux >= 529aa8cb0a59367d08883f818e8c47028e819d0d < 97528b1622b8f129574d29a571c32a3c85eafa3cLinux >= 529aa8cb0a59367d08883f818e8c47028e819d0d < fe747d7112283f47169e9c16e751179a9b38611eLinux 2.6.33Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-99284Nonenet: skbuff: propagate shared-frag marker in skb_zerocopy()
CVE-2026-99283Nonenetfilter: conntrack: tcp: use UNACK timeout for non-closing RST packets
CVE-2026-99272Nonesmb: client: validate the data area in SMB2_read()
CVE-2026-99271NoneALSA: line6: Clear prev_fbuf on capture buffer release
CVE-2026-99273Noneksmbd: reserve space for the UTF-16 terminator in stream info
CVE-2026-99275Nonesmb: client: reject short SESSION_SETUP responses