CVE-2026-72257
CVE CVE-2026-72257EUVD EUVD-2026-59156Published 2026-08-15T05:54:44.000ZLast changed 2026-08-17T05:11:15.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: ASoC: qcom: q6apm: fix NULL pointer dereference in graph_callback When q6apm_free_fragments() is called it frees rx_data.buf/tx_data.buf and sets them to NULL under graph->lock. A late DSP buffer-done response can race with this: graph_callback() passes the !graph->ar_graph guard (not yet NULL), acquires the lock, but then dereferences a now-NULL buf pointer to read buf[token].phys, crashing at virtual address 0x10. Add a NULL check for buf inside the mutex-protected section in both the write-done (DATA_CMD_RSP_WR_SH_MEM_EP_DATA_BUFFER_DONE_V2) and read-done (DATA_CMD_RSP_RD_SH_MEM_EP_DATA_BUFFER_V2) handlers and bail out cleanly if buffers have already been freed. This problem is only shown up recently while apr bus was updated to process the commands per service rather from single global queue.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 5477518b8a0e8a45239646acd80c9bafc4401522 <214af790e3a33ab73587de4c925c60a550eae9c6; patch: 6.18.40; 5477518b8a0e8a45239646acd80c9bafc4401522 <2c715f8a1e644ce4c3e8be5b0fd3f1f4704b73b3; 5477518b8a0e8a45239646acd80c9bafc4401522 <ca028334343a140efda4b22e53cbce2c5e94a489; patch: 7.2; patch: 0; 5.16; 5477518b8a0e8a45239646acd80c9bafc4401522 <ec369eac0795cfa8f4d3a0cd35a1e8e15f780331; patch: 6.1.178; patch: 7.1.5; patch: 6.6.145; 5477518b8a0e8a45239646acd80c9bafc4401522 <2e9261761b35f0b67b7487688cd1365f535be0b3; patch: 6.12.97; 5477518b8a0e8a45239646acd80c9bafc4401522 <a164e744d8de1c41049bd9a1452a4b6bbf5bd8bc
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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