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CVE-2026-98833

Linux: mtd: core: call _get_device() with the master MTD

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.17%Chance of exploitation activity in the next 30 days, higher than 5% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in95c8f36293c22d450c371167ad4f9a5bbadc7539Also 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1CVE List
Published18 Oct 2026Updated 21 Oct 2026CVE List

What fixes it

  • 95c8f36293c22d450c371167ad4f9a5bbadc7539LinuxCVE List
  • 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1LinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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().

Text from CVE List

Affected versions 12

  • Linuxaffected: 46b5889cc2c54bac7d7e727a44d28a298df23cef before d94731cafa57e2c986ff391122d1494e5a3f3c3fCVE List
  • Linuxaffected: 46b5889cc2c54bac7d7e727a44d28a298df23cef before 95c8f36293c22d450c371167ad4f9a5bbadc7539CVE List
  • Linuxaffected: 46b5889cc2c54bac7d7e727a44d28a298df23cef before f971f1c63cf71579258360a12bd185bc1cd1a043CVE List
  • Linuxaffected: 46b5889cc2c54bac7d7e727a44d28a298df23cef before dc482a281a19a7d7e91ad1b2d551bb301c54d0e6CVE List
  • Linuxaffected: 46b5889cc2c54bac7d7e727a44d28a298df23cef before 12b31d1acd20b3185bb5f0748db0cf6874c8e9d1CVE List
  • Linuxaffected: 5.7CVE List
  • Linuxunaffected: all versions before 5.7CVE List
  • Linuxunaffected: 6.6.160 through 6.6.*CVE List
  • Linuxunaffected: 6.12.113 through 6.12.*CVE List
  • Linuxunaffected: 6.18.56 through 6.18.*CVE List
  • Linuxunaffected: 7.2.10 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 5