What’s Vulnerable › Vulnerabilities

CVE-2026-23087: scsi: xen: scsiback: Fix potential memory leak in scsiback_remove()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-04 · updated 2026-10-15
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Fix potential memory leak in scsiback_remove() Memory allocated for struct vscsiblk_info in scsiback_probe() is not freed in scsiback_remove() leading to potential memory leaks on remove, as well as in the scsiback_probe() error paths. Fix that by freeing it in scsiback_remove().

Affected products

• Linux kernel: from 3.18 before 5.10.249; from 5.11 before 5.15.199; from 5.16 before 6.1.162; from 6.2 before 6.6.122; from 6.7 before 6.12.68; from 6.13 before 6.18.8 — fixed in 5.10.249, 5.15.199, 6.1.162, 6.12.68, 6.18.8, 6.6.122

How to fix

Upgrade to a fixed version: Linux kernel 5.10.249, 5.15.199, 6.1.162, 6.12.68. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/24c441f0e24da175d7912095663f526ac480dc4f
• https://git.kernel.org/stable/c/32e52b56056daf0f0881fd9254706acf25b4be97
• https://git.kernel.org/stable/c/427b0fb30ddec3bad05dcd73b00718f98c7026d2
• https://git.kernel.org/stable/c/4a975c72429b050c234405668b742cdecc11548e
• https://git.kernel.org/stable/c/901a5f309daba412e2a30364d7ec1492fa11c32c
• https://git.kernel.org/stable/c/a8bb3ec8d85951a56af0a72d93ccbc2aee42eef9
• https://git.kernel.org/stable/c/f86264ec0e2b102fcd49bf3e4f32fee669d482fc
• https://cert-portal.siemens.com/productcert/html/ssa-019113.html
• https://cert-portal.siemens.com/productcert/html/ssa-457936.html

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