CVE-2026-90150

Summary

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

pnfs/blocklayout: Fix device leaks on parse failure

bl_parse_concat() and bl_parse_stripe() allocate a child device array and then parse each child in turn. If parsing a child fails, the failed child is not counted in nr_children and the parent may be left with a children array that bl_free_device() will not release when nr_children is zero.

Release the failed child and the already parsed children before returning the error. Also make bl_free_device() release the child array whenever the children pointer is set, so that partially initialised concat or stripe devices are cleaned up correctly.

bl_parse_scsi() can also fail after assigning d->bdev_file and dropping the file reference. Clear the pointer after fput() so that an outer cleanup path does not put it again.

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/8a2494964edac2a13e82441c2bf887548dc3be0b
• https://git.kernel.org/stable/c/1e1c36b206c659cf94c6755a1d821ed1babd32bc
• https://git.kernel.org/stable/c/23e4162405c456ce12c772d5882d306135e828ae
• https://git.kernel.org/stable/c/c056f817e4200fb18079d5052c273a22f191ff0a

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