CVE-2026-99068
ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers
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Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers Commit e576e7843c0d ("ALSA: ctxfi: Simplify dao_clear_{left,right}_input() functions") centralized the DAO input mapper clearing logic in dao_clear_input(), but omitted the kfree() calls. It removes the mapper entries from the list and sets their pointers to NULL without freeing the allocated array. This leaks memory each time dao_clear_input() is called. Store the base pointer of the allocation before clearing the mapper entries and free the array after removing entries from the list.
Affected products and packages
CNA (CVE.org)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | affected: e576e7843c0d65b82d4092e5b386d9fbf5bc10c3 … < f7dc71c1ce885f5d9f128037ebc75d9c0356e060 affected: e576e7843c0d65b82d4092e5b386d9fbf5bc10c3 … < 0919d8dd19f92e12829055c75fced9a454d644bf affected: e576e7843c0d65b82d4092e5b386d9fbf5bc10c3 … < 593d46fc6af9a0178a46e77d6d24b20d2314165f default: unaffected |
| Linux | Linux | affected: 6.14 unaffected: 0 … < 6.14 unaffected: 6.18.57 … <= 6.18.* unaffected: 7.2.11 … <= 7.2.* unaffected: 7.3 … <= * default: affected |
Open-source packages (GitHub Advisory / OSV)
ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers
| Ecosystem | Package | Affected versions | Fixed in |
|---|---|---|---|
| >= e576e7843c0d65b82d4092e5b386d9fbf5bc10c3, < f7dc71c1ce885f5d9f128037ebc75d9c0356e060; < 0919d8dd19f92e12829055c75fced9a454d644bf; < 593d46fc6af9a0178a46e77d6d24b20d2314165f | f7dc71c1ce885f5d9f128037ebc75d9c0356e060, 0919d8dd19f92e12829055c75fced9a454d644bf, 593d46fc6af9a0178a46e77d6d24b20d2314165f | ||
| Linux | Kernel | >= 6.14.0, < 6.18.57; >= 6.19.0, < 7.2.11 | 6.18.57, 7.2.11 |
Linux distribution status
References (6)
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git OSV
- https://git.kernel.org/stable/c/0919d8dd19f92e12829055c75fced9a454d644bf NVD, CNA, OSV
- https://git.kernel.org/stable/c/593d46fc6af9a0178a46e77d6d24b20d2314165f NVD, CNA, OSV
- https://git.kernel.org/stable/c/f7dc71c1ce885f5d9f128037ebc75d9c0356e060 NVD, CNA, OSV
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99068.json OSV
- https://nvd.nist.gov/vuln/detail/CVE-2026-99068 OSV