{"cve":"CVE-2022-49268","nvd":{"published":"2025-02-26T07:01:03.710","modified":"2026-06-17T05:17:33.120","status":"Analyzed","description":"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]  <TASK>\n  [ T1387]  cl_stream_prepare+0x10a/0x120 [snd_sof_intel_hda_common 146addf995b9279ae7f509621078cccbe4f875e1]\n  [... snip ...]\n  [ T1387]  </TASK>","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/01df5f7627f1624d6bb0b8c0870a569b32adfbf8","https://git.kernel.org/stable/c/09eca322d4118dc26570ca6100fa34e59e5a5143","https://git.kernel.org/stable/c/0c307349fe060971625b856c92f0361b8ea9a120","https://git.kernel.org/stable/c/67f7bd9ff9079c1ee2de58e024fb582905c74c16","https://git.kernel.org/stable/c/b6094744e261083d3790c3def770ebf5060d383b"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49268","score":0.00262,"percentile":0.18077,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}