CVE-2021-46908

published 2024-02-27

CVE-2021-46908: In the Linux kernel, the following vulnerability has been resolved: bpf: Use correct permission flag for mixed signed bounds arithmetic We forbid adding…

Priority P4 19 medium 5.5 CVSS 3.1

AV L AC L PR L UI N S U C N I N A H

In the Linux kernel, the following vulnerability has been resolved:

bpf: Use correct permission flag for mixed signed bounds arithmetic

We forbid adding unknown scalars with mixed signed bounds due to the
spectre v1 masking mitigation. Hence this also needs bypass_spec_v1
flag instead of allow_ptr_leaks.

Affected

11 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 5.10.38-1 (bookworm)	linux 5.10.38-1 (bookworm)
linux	linux	—	—
linux	linux	>= 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 < 4f3ff11204eac0ee23acf64deecb3bad7b0db0c6	4f3ff11204eac0ee23acf64deecb3bad7b0db0c6
linux	linux	>= 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 < 4ccdc6c6cae38b91c871293fb0ed8c6845a61b51	4ccdc6c6cae38b91c871293fb0ed8c6845a61b51
linux	linux	>= 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366 < 9601148392520e2e134936e76788fc2a6371e7be	9601148392520e2e134936e76788fc2a6371e7be
linux	linux_kernel	>= 0 < 5.10.38-1	5.10.38-1
linux	linux_kernel	>= 0 < 5.10.38-1	5.10.38-1
linux	linux_kernel	>= 0 < 5.10.38-1	5.10.38-1
linux	linux_kernel	>= 0 < 5.10.38-1	5.10.38-1
linux	linux_kernel	>= 5.11.0 < 5.11.16	5.11.16
linux	linux_kernel	>= 5.8.0 < 5.10.32	5.10.32

CVSS provenance

nvd v3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

osv 5.5 MEDIUM

vendor_debian 5.5 MEDIUM

vendor_redhat 5.5 MEDIUM

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CWE-20