CVE-2022-49268

ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM

State: Published
Severity: Not scored
Published: Feb 26, 2025
Updated: May 11, 2026
Reserved: Feb 26, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM

Do not call snd_dma_free_pages() when snd_dma_alloc_pages() returns -ENOMEM because it leads to a NULL pointer dereference bug.

The dmesg says:

[ T1387] sof-audio-pci-intel-tgl 0000:00:1f.3: error: memory alloc failed: -12 [ T1387] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ T1387] #PF: supervisor read access in kernel mode [ T1387] #PF: error_code(0x0000) - not-present page [ T1387] PGD 0 P4D 0 [ T1387] Oops: 0000 [#1] PREEMPT SMP NOPTI [ T1387] CPU: 6 PID: 1387 Comm: alsa-sink-HDA A Tainted: G W 5.17.0-rc4-superb-owl-00055-g80d47f5de5e3 [ T1387] Hardware name: HP HP Laptop 14s-dq2xxx/87FD, BIOS F.15 09/15/2021 [ T1387] RIP: 0010:dma_free_noncontiguous+0x37/0x80 [ T1387] Code: [... snip ...] [ T1387] RSP: 0000:ffffc90002b87770 EFLAGS: 00010246 [ T1387] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ T1387] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888101db30d0 [ T1387] RBP: 00000000fffffff4 R08: 0000000000000000 R09: 0000000000000000 [ T1387] R10: 0000000000000000 R11: ffffc90002b874d0 R12: 0000000000000001 [ T1387] R13: 0000000000058000 R14: ffff888105260c68 R15: ffff888105260828 [ T1387] FS: 00007f42e2ffd640(0000) GS:ffff888466b80000(0000) knlGS:0000000000000000 [ T1387] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ T1387] CR2: 0000000000000000 CR3: 000000014acf0003 CR4: 0000000000770ee0 [ T1387] PKRU: 55555554 [ T1387] Call Trace: [ T1387] <TASK> [ T1387] cl_stream_prepare+0x10a/0x120 [snd_sof_intel_hda_common 146addf995b9279ae7f509621078cccbe4f875e1] [... snip ...] [ T1387] </TASK>

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d16046ffa6de040bf580a64d5f4d0aa18258a854 to before 01df5f7627f1624d6bb0b8c0870a569b32adfbf8Affected d16046ffa6de040bf580a64d5f4d0aa18258a854 to before 0c307349fe060971625b856c92f0361b8ea9a120Affected d16046ffa6de040bf580a64d5f4d0aa18258a854 to before b6094744e261083d3790c3def770ebf5060d383bAffected d16046ffa6de040bf580a64d5f4d0aa18258a854 to before 09eca322d4118dc26570ca6100fa34e59e5a5143Affected d16046ffa6de040bf580a64d5f4d0aa18258a854 to before 67f7bd9ff9079c1ee2de58e024fb582905c74c16Affected d16046ffa6de040bf580a64d5f4d0aa18258a854 to before b7fb0ae09009d076964afe4c1a2bde1ee2bd88a9Affected
LinuxLinux	5.2Affected before 5.2Not affected 5.4.189 through 5.4.Not affected 5.10.110 through 5.10.Not affected 5.15.33 through 5.15.Not affected 5.16.19 through 5.16.Not affected 5.17.2 through 5.17.*Not affected 5.18 and laterNot affected

Product

Versions

LinuxLinux

d16046ffa6de040bf580a64d5f4d0aa18258a854 to before 01df5f7627f1624d6bb0b8c0870a569b32adfbf8Affected
d16046ffa6de040bf580a64d5f4d0aa18258a854 to before 0c307349fe060971625b856c92f0361b8ea9a120Affected
d16046ffa6de040bf580a64d5f4d0aa18258a854 to before b6094744e261083d3790c3def770ebf5060d383bAffected
d16046ffa6de040bf580a64d5f4d0aa18258a854 to before 09eca322d4118dc26570ca6100fa34e59e5a5143Affected
d16046ffa6de040bf580a64d5f4d0aa18258a854 to before 67f7bd9ff9079c1ee2de58e024fb582905c74c16Affected
d16046ffa6de040bf580a64d5f4d0aa18258a854 to before b7fb0ae09009d076964afe4c1a2bde1ee2bd88a9Affected

LinuxLinux

5.2Affected
before 5.2Not affected
5.4.189 through 5.4.*Not affected
5.10.110 through 5.10.*Not affected
5.15.33 through 5.15.*Not affected
5.16.19 through 5.16.*Not affected
5.17.2 through 5.17.*Not affected
5.18 and laterNot affected

References

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