{"id":"CVE-2025-22104","state":"PUBLISHED","title":"ibmvnic: Use kernel helpers for hex dumps","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nibmvnic: Use kernel helpers for hex dumps\n\nPreviously, when the driver was printing hex dumps, the buffer was cast\nto an 8 byte long and printed using string formatters. If the buffer\nsize was not a multiple of 8 then a read buffer overflow was possible.\n\nTherefore, create a new ibmvnic function that loops over a buffer and\ncalls hex_dump_to_buffer instead.\n\nThis patch address KASAN reports like the one below:\n  ibmvnic 30000003 env3: Login Buffer:\n  ibmvnic 30000003 env3: 01000000af000000\n  <...>\n  ibmvnic 30000003 env3: 2e6d62692e736261\n  ibmvnic 30000003 env3: 65050003006d6f63\n  ==================================================================\n  BUG: KASAN: slab-out-of-bounds in ibmvnic_login+0xacc/0xffc [ibmvnic]\n  Read of size 8 at addr c0000001331a9aa8 by task ip/17681\n  <...>\n  Allocated by task 17681:\n  <...>\n  ibmvnic_login+0x2f0/0xffc [ibmvnic]\n  ibmvnic_open+0x148/0x308 [ibmvnic]\n  __dev_open+0x1ac/0x304\n  <...>\n  The buggy address is located 168 bytes inside of\n                allocated 175-byte region [c0000001331a9a00, c0000001331a9aaf)\n  <...>\n  =================================================================\n  ibmvnic 30000003 env3: 000000000033766e","publishedAt":"2025-04-16T14:12:53.118Z","updatedAt":"2026-09-02T12:49:16.565Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"19efa170e01207c8ada726f3f6c65b31fcba2a73","versionType":"git"},{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"9bc078818ec76344c2e06b81d7aee2df3adecfbf","versionType":"git"},{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"005fee039dd845122d313ac8f2122b0d09dc5d7b","versionType":"git"},{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"ae6b1d6c1acee3a2000394d83ec9f1028321e207","versionType":"git"},{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"d93a6caab5d7d9b5ce034d75b1e1e993338e3852","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ibm/ibmvnic.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.5","versionType":"semver"},{"version":"6.1.187","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.156","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.108","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.2","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ibm/ibmvnic.c"]}],"references":["https://git.kernel.org/stable/c/19efa170e01207c8ada726f3f6c65b31fcba2a73","https://git.kernel.org/stable/c/9bc078818ec76344c2e06b81d7aee2df3adecfbf","https://git.kernel.org/stable/c/005fee039dd845122d313ac8f2122b0d09dc5d7b","https://git.kernel.org/stable/c/ae6b1d6c1acee3a2000394d83ec9f1028321e207","https://git.kernel.org/stable/c/d93a6caab5d7d9b5ce034d75b1e1e993338e3852"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/22xxx/CVE-2025-22104.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-22104","state":"PUBLISHED","datePublished":"2025-04-16T14:12:53.118Z","dateUpdated":"2026-09-02T12:49:16.565Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T08:45:45.819Z"},"containers":{"cna":{"title":"ibmvnic: Use kernel helpers for hex dumps","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nibmvnic: Use kernel helpers for hex dumps\n\nPreviously, when the driver was printing hex dumps, the buffer was cast\nto an 8 byte long and printed using string formatters. If the buffer\nsize was not a multiple of 8 then a read buffer overflow was possible.\n\nTherefore, create a new ibmvnic function that loops over a buffer and\ncalls hex_dump_to_buffer instead.\n\nThis patch address KASAN reports like the one below:\n  ibmvnic 30000003 env3: Login Buffer:\n  ibmvnic 30000003 env3: 01000000af000000\n  <...>\n  ibmvnic 30000003 env3: 2e6d62692e736261\n  ibmvnic 30000003 env3: 65050003006d6f63\n  ==================================================================\n  BUG: KASAN: slab-out-of-bounds in ibmvnic_login+0xacc/0xffc [ibmvnic]\n  Read of size 8 at addr c0000001331a9aa8 by task ip/17681\n  <...>\n  Allocated by task 17681:\n  <...>\n  ibmvnic_login+0x2f0/0xffc [ibmvnic]\n  ibmvnic_open+0x148/0x308 [ibmvnic]\n  __dev_open+0x1ac/0x304\n  <...>\n  The buggy address is located 168 bytes inside of\n                allocated 175-byte region [c0000001331a9a00, c0000001331a9aaf)\n  <...>\n  =================================================================\n  ibmvnic 30000003 env3: 000000000033766e"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"19efa170e01207c8ada726f3f6c65b31fcba2a73","versionType":"git"},{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"9bc078818ec76344c2e06b81d7aee2df3adecfbf","versionType":"git"},{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"005fee039dd845122d313ac8f2122b0d09dc5d7b","versionType":"git"},{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"ae6b1d6c1acee3a2000394d83ec9f1028321e207","versionType":"git"},{"version":"032c5e82847a2214c3196a90f0aeba0ce252de58","status":"affected","lessThan":"d93a6caab5d7d9b5ce034d75b1e1e993338e3852","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ibm/ibmvnic.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.5","versionType":"semver"},{"version":"6.1.187","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.156","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.108","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.2","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ibm/ibmvnic.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/19efa170e01207c8ada726f3f6c65b31fcba2a73"},{"url":"https://git.kernel.org/stable/c/9bc078818ec76344c2e06b81d7aee2df3adecfbf"},{"url":"https://git.kernel.org/stable/c/005fee039dd845122d313ac8f2122b0d09dc5d7b"},{"url":"https://git.kernel.org/stable/c/ae6b1d6c1acee3a2000394d83ec9f1028321e207"},{"url":"https://git.kernel.org/stable/c/d93a6caab5d7d9b5ce034d75b1e1e993338e3852"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-09-02T12:49:16.565Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.1.187"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.6.156"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.12.108"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.14.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.15"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}