Linux Kernel MTD _get_device() Master Mismatch CVE-2026-98833
CVE-2026-98833 Published on October 18, 2026
mtd: core: call _get_device() with the master MTD
In the Linux kernel, the following vulnerability has been resolved:
mtd: core: call _get_device() with the master MTD
__get_mtd_device() calls the master's _get_device() callback with mtd,
which may be a partition. __put_mtd_device() passes the master.
This breaks gluebi partitions because gluebi_get_device() uses
container_of() and therefore requires the master MTD. Pass the master
to _get_device(), matching _put_device().
Products Associated with CVE-2026-98833
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Affected Versions
Linux:- Version 46b5889cc2c54bac7d7e727a44d28a298df23cef and below 95c8f36293c22d450c371167ad4f9a5bbadc7539 is affected.
- Version 46b5889cc2c54bac7d7e727a44d28a298df23cef and below f971f1c63cf71579258360a12bd185bc1cd1a043 is affected.
- Version 46b5889cc2c54bac7d7e727a44d28a298df23cef and below dc482a281a19a7d7e91ad1b2d551bb301c54d0e6 is affected.
- Version 46b5889cc2c54bac7d7e727a44d28a298df23cef and below 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1 is affected.
- Version 5.7 is affected.
- Before 5.7 is unaffected.
- Version 6.12.113, <= 6.12.* is unaffected.
- Version 6.18.56, <= 6.18.* is unaffected.
- Version 7.2.10, <= 7.2.* is unaffected.
- Version 7.3-rc6, <= * is unaffected.