Linux Kernel Media: cx88 ALSA DMA Unmap Leak (CVE202643257)
CVE-2026-43257 Published on May 6, 2026
media: cx88: Add missing unmap in snd_cx88_hw_params()
In the Linux kernel, the following vulnerability has been resolved:
media: cx88: Add missing unmap in snd_cx88_hw_params()
In error path, add cx88_alsa_dma_unmap() to release
resource acquired by cx88_alsa_dma_map().
Products Associated with CVE-2026-43257
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Affected Versions
Linux:- Version b2c75abde0debfb824f72845c3ed77d4b66798a0 and below f0d7f735eba963742009b0706e19dd0bed91537a is affected.
- Version b2c75abde0debfb824f72845c3ed77d4b66798a0 and below dc911fccc6e08ef46a66b2a42a764252b001ee3c is affected.
- Version b2c75abde0debfb824f72845c3ed77d4b66798a0 and below 24f3dabeb97bd0bec8c1c926c97e3eb6a8129225 is affected.
- Version b2c75abde0debfb824f72845c3ed77d4b66798a0 and below 10ab64f8efc2f479293dce929fde326c285fc96f is affected.
- Version b2c75abde0debfb824f72845c3ed77d4b66798a0 and below e3fb15aadfc8643203bbdf97ace0396e4586fa64 is affected.
- Version b2c75abde0debfb824f72845c3ed77d4b66798a0 and below 1ce8c2a8f050a23240553c8bae628ac623f9dbc1 is affected.
- Version b2c75abde0debfb824f72845c3ed77d4b66798a0 and below 3baefeeb7b85e1e34eebef399ffa312be7179e30 is affected.
- Version b2c75abde0debfb824f72845c3ed77d4b66798a0 and below dbc527d980f7ba8559de38f8c1e4158c71a78915 is affected.
- Version 3.19 is affected.
- Before 3.19 is unaffected.
- Version 5.10.252, <= 5.10.* is unaffected.
- Version 5.15.202, <= 5.15.* is unaffected.
- Version 6.1.165, <= 6.1.* is unaffected.
- Version 6.6.128, <= 6.6.* is unaffected.
- Version 6.12.75, <= 6.12.* is unaffected.
- Version 6.18.16, <= 6.18.* is unaffected.
- Version 6.19.6, <= 6.19.* is unaffected.
- Version 7.0, <= * is unaffected.