{"id":"CVE-2022-49268","summary":"ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM\n\nDo not call snd_dma_free_pages() when snd_dma_alloc_pages() returns\n-ENOMEM because it leads to a NULL pointer dereference bug.\n\nThe dmesg says:\n\n  [ T1387] sof-audio-pci-intel-tgl 0000:00:1f.3: error: memory alloc failed: -12\n  [ T1387] BUG: kernel NULL pointer dereference, address: 0000000000000000\n  [ T1387] #PF: supervisor read access in kernel mode\n  [ T1387] #PF: error_code(0x0000) - not-present page\n  [ T1387] PGD 0 P4D 0\n  [ T1387] Oops: 0000 [#1] PREEMPT SMP NOPTI\n  [ T1387] CPU: 6 PID: 1387 Comm: alsa-sink-HDA A Tainted: G        W         5.17.0-rc4-superb-owl-00055-g80d47f5de5e3\n  [ T1387] Hardware name: HP HP Laptop 14s-dq2xxx/87FD, BIOS F.15 09/15/2021\n  [ T1387] RIP: 0010:dma_free_noncontiguous+0x37/0x80\n  [ T1387] Code: [... snip ...]\n  [ T1387] RSP: 0000:ffffc90002b87770 EFLAGS: 00010246\n  [ T1387] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\n  [ T1387] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888101db30d0\n  [ T1387] RBP: 00000000fffffff4 R08: 0000000000000000 R09: 0000000000000000\n  [ T1387] R10: 0000000000000000 R11: ffffc90002b874d0 R12: 0000000000000001\n  [ T1387] R13: 0000000000058000 R14: ffff888105260c68 R15: ffff888105260828\n  [ T1387] FS:  00007f42e2ffd640(0000) GS:ffff888466b80000(0000) knlGS:0000000000000000\n  [ T1387] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  [ T1387] CR2: 0000000000000000 CR3: 000000014acf0003 CR4: 0000000000770ee0\n  [ T1387] PKRU: 55555554\n  [ T1387] Call Trace:\n  [ T1387]  \u003cTASK\u003e\n  [ T1387]  cl_stream_prepare+0x10a/0x120 [snd_sof_intel_hda_common 146addf995b9279ae7f509621078cccbe4f875e1]\n  [... snip ...]\n  [ T1387]  \u003c/TASK\u003e","modified":"2026-03-20T12:22:18.931438Z","published":"2025-02-26T01:56:16.713Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1241-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49268.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/01df5f7627f1624d6bb0b8c0870a569b32adfbf8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/09eca322d4118dc26570ca6100fa34e59e5a5143"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0c307349fe060971625b856c92f0361b8ea9a120"},{"type":"WEB","url":"https://git.kernel.org/stable/c/67f7bd9ff9079c1ee2de58e024fb582905c74c16"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b6094744e261083d3790c3def770ebf5060d383b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b7fb0ae09009d076964afe4c1a2bde1ee2bd88a9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49268.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49268"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d16046ffa6de040bf580a64d5f4d0aa18258a854"},{"fixed":"01df5f7627f1624d6bb0b8c0870a569b32adfbf8"},{"fixed":"0c307349fe060971625b856c92f0361b8ea9a120"},{"fixed":"b6094744e261083d3790c3def770ebf5060d383b"},{"fixed":"09eca322d4118dc26570ca6100fa34e59e5a5143"},{"fixed":"67f7bd9ff9079c1ee2de58e024fb582905c74c16"},{"fixed":"b7fb0ae09009d076964afe4c1a2bde1ee2bd88a9"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49268.json"}}],"schema_version":"1.7.5"}