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CVE-2022-50022

drivers:md:fix a potential use-after-free bug PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: drivers:md:fix a potential use-after-free bug In line 2884, "raid5_release_stripe(sh);" drops the reference to sh and may cause sh to be released. However, sh is subsequently used in lines 2886 "if (sh->batch_head && sh != sh->batch_head)". This may result in an use-after-free bug. It can be fixed by moving "raid5_release_stripe(sh);" to the bottom of the function.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c before 7470a4314b239e9a9580f248fdf4c9a92805490e; affected 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c before 09cf99bace7789d91caa8d10fbcfc8b2fb35857f; affected 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c before e5b3dd2d92c4511e81f6e4ec9c5bb7ad25e03d13; affected 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c before f5d46f1b47f65da1faf468277b261eb78c8e25b5; affected 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c before 5d8325fd15892c8ab1146edc1d7ed8463de39636; affected 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c before d9b94c3ace549433de8a93eeb27b0391fc8ac406; affected 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c before eb3a4f73f43f839df981dda5859e8e075067a360; affected 59fc630b8b5f9f21c8ce3ba153341c107dce1b0c before 104212471b1c1817b311771d817fb692af983173
Linux / Linuxaffected 4.1; unaffected 0 before 4.1; unaffected 4.9.326 through 4.9.*; unaffected 4.14.291 through 4.14.*; unaffected 4.19.256 through 4.19.*; unaffected 5.4.211 through 5.4.*; unaffected 5.10.138 through 5.10.*; unaffected 5.15.63 through 5.15.*; unaffected 5.19.4 through 5.19.*; unaffected 6.0 through *

CWE

No CWE identifiers supplied.

References