In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix linked reg delta tracking when src_reg == dst_reg
Consider the case of rX += rX where src_reg and dst_reg are pointers to
the same bpf_reg_state in adjust_reg_min_max_vals(). The latter first
modifies the dst_reg in-place, and later in the delta tracking, the
subsequent is_reg_const(src_reg)/reg_const_value(src_reg) reads the
post-{add,sub} value instead of the original source.
This is problematic since it sets an incorrect delta, which sync_linked_regs()
then propagates to linked registers, thus creating a verifier-vs-runtime
mismatch. Fix it by just skipping this corner case.
References
| Link | Resource |
|---|---|
| https://git.kernel.org/stable/c/cc86a8b0a1c54d2bccf6f68cf49b82dea91b84de | Patch |
| https://git.kernel.org/stable/c/d7f14173c0d5866c3cae759dee560ad1bed10d2e | Patch |
| https://git.kernel.org/stable/c/d88e8e4a3b52bd5b2ff3eceba4b29d1b5506d066 | Patch |
| https://access.redhat.com/security/cve/CVE-2026-53092 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2492362 | Third Party Advisory |
| https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53092.json | Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
23 Jul 2026, 18:34
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/cc86a8b0a1c54d2bccf6f68cf49b82dea91b84de - Patch | |
| References | () https://git.kernel.org/stable/c/d7f14173c0d5866c3cae759dee560ad1bed10d2e - Patch | |
| References | () https://git.kernel.org/stable/c/d88e8e4a3b52bd5b2ff3eceba4b29d1b5506d066 - Patch | |
| References | () https://access.redhat.com/security/cve/CVE-2026-53092 - Third Party Advisory | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=2492362 - Third Party Advisory | |
| References | () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53092.json - Third Party Advisory | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | NVD-CWE-noinfo |
30 Jun 2026, 03:20
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-393 | |
| References |
|
28 Jun 2026, 08:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
24 Jun 2026, 17:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-06-24 17:17
Updated : 2026-07-23 18:34
NVD link : CVE-2026-53092
Mitre link : CVE-2026-53092
CVE.ORG link : CVE-2026-53092
JSON object : View
Products Affected
linux
- linux_kernel
CWE