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CVE-2026-23253

In the Linux kernel, the following vulnerability has been resolved: media: dvb-core: fix wrong reinitialization of ringbuffer on reopen dvb_dvr_open() calls dvb_ringbuffer_init() when a new reader opens the DVR device. dvb_ringbuffer_init() calls init_waitqueue_head(), which reinitializes the waitqueue list head to empty. Since dmxdev->dvr_buffer.queue is a shared waitqueue (all opens of the same DVR device share it), this orphans any existing waitqueue entries from io_uring poll or epoll, l
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2f6fef5e921c16ebab9db3460348b42692d221f2fac7efd4c2d3dba3fff320cc
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/media/dvb-core/dmxdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.17"},{"lessThan":"2.6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semv…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/media/dvb-core/dmxdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"527cfa8a3486b3555c5c15e2f62be484a11398dc","status":"affected","version":"34731df288a5ffe4b0c396caf8cd24c6a710a222","versionType":"git"},{"lessThan":"fb378cf89be434ed1f10ab79cc4788fba8ae868d","status":"affected","version":"34731df288a5ffe4b0c396caf8cd24c6a710a222","versionType":"git"},{"lessThan":"f1e520ca2e83ece6731af6167c9e5e16931ecba0","status":"affected","version":"34731df288a5ff…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/media/dvb-core/dmxdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.17"},{"lessThan":"2.6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semv…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/media/dvb-core/dmxdev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"527cfa8a3486b3555c5c15e2f62be484a11398dc","status":"affected","version":"34731df288a5ffe4b0c396caf8cd24c6a710a222","versionType":"git"},{"lessThan":"fb378cf89be434ed1f10ab79cc4788fba8ae868d","status":"affected","version":"34731df288a5ffe4b0c396caf8cd24c6a710a222","versionType":"git"},{"lessThan":"f1e520ca2e83ece6731af6167c9e5e16931ecba0","status":"affected","version":"34731df288a5ff…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/32eb8e4adc207ef31bc6e5ae56bab940b0176066"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/527cfa8a3486b3555c5c15e2f62be484a11398dc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/af050ab44fa1b1897a940d7d756e512232f5e5df"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/bfbc0b5b32a8f28ce284add619bf226716a59bc0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/cfd94642025e6f71c8f754bdec0800ee95e4f3dd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/d71781bad59b1c9d60d7068004581f9bf19c0c9d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/f1e520ca2e83ece6731af6167c9e5e16931ecba0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/fb378cf89be434ed1f10ab79cc4788fba8ae868d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:77a019890b4b1a9009577034ae8124e01dac3bd129b9a04675dc999ee49432f0 · sha256:ced07f00f3ac364f… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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