Bug 2420240 (CVE-2023-53803) - CVE-2023-53803 kernel: scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process()
Summary: CVE-2023-53803 kernel: scsi: ses: Fix slab-out-of-bounds in ses_enclosure_dat...
Keywords:
Status: NEW
Alias: CVE-2023-53803
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-09 01:02 UTC by OSIDB Bzimport
Modified: 2025-12-10 08:10 UTC (History)
0 users

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Description OSIDB Bzimport 2025-12-09 01:02:36 UTC 
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.
Comment 1 Alexander B 2025-12-10 08:07:18 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120943-CVE-2023-53803-0ff9@gregkh/T
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