{"id":"AZL-72832","summary":"CVE-2025-38300 affecting package kernel 5.15.200.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: sun8i-ce-cipher - fix error handling in sun8i_ce_cipher_prepare()\n\nFix two DMA cleanup issues on the error path in sun8i_ce_cipher_prepare():\n\n1] If dma_map_sg() fails for areq-\u003edst, the device driver would try to free\n   DMA memory it has not allocated in the first place. To fix this, on the\n   \"theend_sgs\" error path, call dma unmap only if the corresponding dma\n   map was successful.\n\n2] If the dma_map_single() call for the IV fails, the device driver would\n   try to free an invalid DMA memory address on the \"theend_iv\" path:\n   ------------[ cut here ]------------\n   DMA-API: sun8i-ce 1904000.crypto: device driver tries to free an invalid DMA memory address\n   WARNING: CPU: 2 PID: 69 at kernel/dma/debug.c:968 check_unmap+0x123c/0x1b90\n   Modules linked in: skcipher_example(O+)\n   CPU: 2 UID: 0 PID: 69 Comm: 1904000.crypto- Tainted: G           O        6.15.0-rc3+ #24 PREEMPT\n   Tainted: [O]=OOT_MODULE\n   Hardware name: OrangePi Zero2 (DT)\n   pc : check_unmap+0x123c/0x1b90\n   lr : check_unmap+0x123c/0x1b90\n   ...\n   Call trace:\n    check_unmap+0x123c/0x1b90 (P)\n    debug_dma_unmap_page+0xac/0xc0\n    dma_unmap_page_attrs+0x1f4/0x5fc\n    sun8i_ce_cipher_do_one+0x1bd4/0x1f40\n    crypto_pump_work+0x334/0x6e0\n    kthread_worker_fn+0x21c/0x438\n    kthread+0x374/0x664\n    ret_from_fork+0x10/0x20\n   ---[ end trace 0000000000000000 ]---\n\nTo fix this, check for !dma_mapping_error() before calling\ndma_unmap_single() on the \"theend_iv\" path.","modified":"2026-04-01T05:22:12.870329Z","published":"2025-07-10T08:15:28Z","upstream":["CVE-2025-38300"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38300"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"5.15.200.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-72832.json"}}],"schema_version":"1.7.5"}