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CVE-2026-90188

null_blk: free global tag_set on init error path

In the Linux kernel, the following vulnerability has been resolved:

null_blk: free global tag_set on init error path

If shared_tags is enabled, null_setup_tagset() allocates the global tag_set
via null_init_global_tag_set(). If device creation later fails, err_dev
destroys the default devices and calls unregister_blkdev(), but never frees
the global tag_set. Since module init failed, null_exit() is never invoked,
so the global tag_set's tags and maps are permanently leaked.

Free the global tag_set in err_dev, matching null_exit() which does
if (tag_set.ops) blk_mq_free_tag_set(&tag_set).
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 82f402fefa50f1675bf918bcd009981bd6b30ac8
Version < 0b2faa330184340d9418ad2c627c2ae881772e33
Status affected
Version 82f402fefa50f1675bf918bcd009981bd6b30ac8
Version < 665c94554ff0d5d88caae7f40c16c8e0a3369eda
Status affected
Version 82f402fefa50f1675bf918bcd009981bd6b30ac8
Version < 2882e1450fa4597811a951196e07553ea134eb31
Status affected
Version 82f402fefa50f1675bf918bcd009981bd6b30ac8
Version < 2b59484ac1e64dd78dbe8c6140891c6308085a75
Status affected
Version 82f402fefa50f1675bf918bcd009981bd6b30ac8
Version < 081cf37e8a0e00cd91d6df53172c9d928790a798
Status affected
Version 82f402fefa50f1675bf918bcd009981bd6b30ac8
Version < 5a1c5ff3a49ba93a1fd0b70537e7a0164071760d
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 4.13
Status affected
Version 0
Version < 4.13
Status unaffected
Version <= 6.1.*
Version 6.1.188
Status unaffected
Version <= 6.6.*
Version 6.6.157
Status unaffected
Version <= 6.12.*
Version 6.12.110
Status unaffected
Version <= 6.18.*
Version 6.18.52
Status unaffected
Version <= 7.2.*
Version 7.2.6
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.109
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/0b2faa330184340d9418ad2c627c2ae881772e33
https://git.kernel.org/stable/c/665c94554ff0d5d88caae7f40c16c8e0a3369eda
https://git.kernel.org/stable/c/2882e1450fa4597811a951196e07553ea134eb31
https://git.kernel.org/stable/c/2b59484ac1e64dd78dbe8c6140891c6308085a75
https://git.kernel.org/stable/c/081cf37e8a0e00cd91d6df53172c9d928790a798
https://git.kernel.org/stable/c/5a1c5ff3a49ba93a1fd0b70537e7a0164071760d