CVE-2026-64420High· 7.0▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: mfd: cros_ec: Delay dev_set_drvdata() until probe success If ec_device_probe() fails, cros_ec_class_release releases memory for the cros_ec_dev structure. However, bec…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 38.5 · likelihood 0 · exploitation 0
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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. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
In the Linux kernel, the following vulnerability has been resolved:
mfd: cros_ec: Delay dev_set_drvdata() until probe success
If ec_device_probe() fails, cros_ec_class_release releases memory for the cros_ec_dev structure. However, because the drvdata was already set, sub-drivers like cros_ec_typec can still retrieve the stale pointer via the platform device. This leads to a use-after-free when cros_ec_typec attempts to access &typec->ec->ec->dev on a device that has already been released. Move dev_set_drvdata() to ensure that the pointer is only made available once all initialization steps have succeeded.
sysfs: cannot create duplicate filename '/class/chromeos/cros_ec' Call trace: sysfs_do_create_link_sd+0x94/0xdc sysfs_create_link+0x30/0x44 device_add_class_symlinks+0x90/0x13c device_add+0xf0/0x50c ec_device_probe+0x150/0x4f0 platform_probe+0xa0/0xe0 ... BUG: KASAN: invalid-access in __memcpy+0x44/0x230 Write at addr f5ffff809e2d33ac by task kworker/u32:5/125 Pointer tag: [f5], memory tag: [fe] Tainted : [W]=WARN, [O]=OOT_MODULE Hardware name: Google Navi unprovisioned 0x7FFFFFFF/sku0 board/sku3 Workqueue: events_unbound deferred_probe_work_func Call trace: __memcpy+0x44/0x230 cros_ec_check_features+0x60/0xcc [cros_ec_proto] cros_typec_probe+0xe8/0x6e0 [cros_ec_typec] platform_probe+0xa0/0xe0
Linux >= 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b < 24522713034d521ea4b5f5f36342e2b2f7e73bd6Linux >= 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b < f7e81dc181d9fe8ab977158042cd193e8cc12091Linux >= 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b < 257203d83204b192d1265a916b42ca0d499bb117Linux >= 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b < 729ae27dc2503a7c1f92da1859efb45da03e4fa0Linux >= 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b < ed2941e5db016a0c600b25f1972620e6e223d9faLinux >= 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b < b5f41d5bf08e7b1b14fa0bd640975e6d78dc006dLinux >= 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b < fc030c5b116f668d4ca86dca63742ddbc98d1665Linux >= 1c1d152cc5ac3a67d199728a9ba0b4f54a498f8b < 8b2c1d41bc36c100b38ce5ee6def246c527eaf8aLinux 4.12Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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