20260629-linuxkm-fixes

[douzzer]

linuxkm/linuxkm_wc_port.h: fix F-6395 "WC_LINUXKM_ROUND_UP_P_OF_2(1) invokes undefined behavior via __builtin_clzl(0)".

linuxkm/lkcapi_rsa_glue.c: fix F-6120 "RSA PKCS#1 verify paths omit the digest-encode bounds check present in the sign paths (potential heap overflow with sub-default RSA key sizes)".

fix F-3085 "Base64_Decode silently returns success with outLen=0 when input is a 1-3 byte truncated base64 fragment, violating decode(encode(x)) roundtrip for inputs producing 2-3 base64 chars without padding":

wolfcrypt/src/coding.c: in Base64_Decode() and Base64_Decode_nonCT(), check for non-whitespace characters past the end and return ASN_INPUT_E if found;

wolfcrypt/test/test.c: in base64_test(), remove ';' from goodChar[], and add trailing*[] test strings and N_BYTE_TRAILING_TEST(), for positive and negative testing of new checks.

[wolfSSL-Fenrir-bot]

Fenrir Automated Review — PR #10812

Scan targets checked: linuxkm-bugs, linuxkm-src, wolfcrypt-bugs, wolfcrypt-port-bugs, wolfcrypt-rs-bugs, wolfcrypt-src, wolfssl-bugs, wolfssl-src

No new issues found in the changed files. ✅

[github-actions]

MemBrowse Memory Report

gcc-arm-cortex-m0plus

• FLASH: .text +88 B (+0.1%, 63,583 B / 262,144 B, total: 24% used)

gcc-arm-cortex-m3

• FLASH: .text +120 B (+0.1%, 121,529 B / 262,144 B, total: 46% used)

gcc-arm-cortex-m4

• FLASH: .text +128 B (+0.1%, 199,180 B / 262,144 B, total: 76% used)

gcc-arm-cortex-m4-baremetal

• FLASH: .text +128 B (+0.2%, 66,187 B / 262,144 B, total: 25% used)

gcc-arm-cortex-m4-crypto-only

• FLASH: .text +128 B (+0.1%, 173,802 B / 262,144 B, total: 66% used)

gcc-arm-cortex-m4-dtls13

• FLASH: .text +128 B (+0.1%, 179,928 B / 1,048,576 B, total: 17% used)

gcc-arm-cortex-m4-min-ecc

• FLASH: .text +128 B (+0.2%, 61,165 B / 262,144 B, total: 23% used)

gcc-arm-cortex-m4-openssl-compat

• FLASH: .text +128 B (+0.0%, 768,260 B / 1,048,576 B, total: 73% used)

gcc-arm-cortex-m4-pkcs7

• FLASH: .text +128 B (+0.1%, 211,501 B / 262,144 B, total: 81% used)

gcc-arm-cortex-m4-pq

• FLASH: .text +128 B (+0.0%, 278,064 B / 1,048,576 B, total: 27% used)

gcc-arm-cortex-m4-rsa-only

• FLASH: .text +128 B (+0.0%, 323,600 B / 1,048,576 B, total: 31% used)

gcc-arm-cortex-m4-sp-math

• FLASH: .text +128 B (+0.2%, 61,165 B / 262,144 B, total: 23% used)

gcc-arm-cortex-m4-tls12

• FLASH: .text +128 B (+0.1%, 122,317 B / 262,144 B, total: 47% used)

gcc-arm-cortex-m4-tls13

• FLASH: .text +64 B (+0.0%, 234,814 B / 262,144 B, total: 90% used)

gcc-arm-cortex-m7

• FLASH: .text +128 B (+0.1%, 199,180 B / 262,144 B, total: 76% used)

gcc-arm-cortex-m7-pq

• FLASH: .text +128 B (+0.0%, 278,640 B / 1,048,576 B, total: 27% used)

gcc-arm-cortex-m7-tls13

• FLASH: .text +128 B (+0.1%, 234,878 B / 262,144 B, total: 90% used)

stm32-sim-stm32h753

• FLASH: .text +880 B (+0.5%, 182,564 B / 2,097,152 B, total: 9% used)
  No memory changes detected for:
• linuxkm-pie
• linuxkm-standard