What’s Vulnerable › Vulnerabilities

CVE-2023-53803: scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process()

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-09 · updated 2026-10-15

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() A fix for: BUG: KASAN: slab-out-of-bounds in ses_enclosure_data_process+0x949/0xe30 [ses] Read of size 1 at addr ffff88a1b043a451 by task systemd-udevd/3271 Checking after (and before in next loop) addl_desc_ptr[1] is sufficient, we expect the size to be sanitized before first access to addl_desc_ptr[1]. Make sure we don't walk beyond end of page.

Affected products

• Linux kernel: 2.6.32 — fixed in 6.3

How to fix

Upgrade to a fixed version: Linux kernel 6.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0dfe68394cbe1d4fe579fb325ecc813c50528c5a
• https://git.kernel.org/stable/c/2b28a7d261cb309912596d6a2d383ca370483527
• https://git.kernel.org/stable/c/467afb1dd630d8c6d172bd6cacc125199b5f4f2d
• https://git.kernel.org/stable/c/799e8dd2022d2e13f0c5c1906b40ceca07a23349
• https://git.kernel.org/stable/c/9b4f5028e493cb353a5c8f5c45073eeea0303abd
• https://git.kernel.org/stable/c/9e5c7d52085b8c84bc82a261580f0eb170039325
• https://git.kernel.org/stable/c/da1a955c48a16e16e925d6544793914e52a6fa51
• https://git.kernel.org/stable/c/e4dd25da784b2e07dbfbf04509afa4c5a1375227

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