Bug 2482076 (CVE-2026-45941)

Summary: CVE-2026-45941 kernel: tpm: tpm_i2c_infineon: Fix locality leak on get_burstcount() failure
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's `tpm_i2c_infineon` module. This vulnerability occurs when the `get_burstcount()` function fails due to a timeout, causing the system to not release an acquired locality. An attacker could potentially exploit this to cause a resource exhaustion, leading to a Denial of Service (DoS) condition.
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Description OSIDB Bzimport 2026-05-27 15:10:10 UTC 
In the Linux kernel, the following vulnerability has been resolved:

tpm: tpm_i2c_infineon: Fix locality leak on get_burstcount() failure

get_burstcount() can return -EBUSY on timeout. When this happens, the
function returns directly without releasing the locality that was
acquired at the beginning of tpm_tis_i2c_send().

Use goto out_err to ensure proper cleanup when get_burstcount() fails.
Comment 1 Keith Grant 2026-05-28 00:17:37 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026052729-CVE-2026-45941-2ecb@gregkh/T