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CVE-2026-31623

In the Linux kernel, the following vulnerability has been resolved: net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete() A malicious USB device claiming to be a CDC Phonet modem can overflow the skb_shared_info->frags[] array by sending an unbounded sequence of full-page bulk transfers. Drop the skb and increment the length error when the frag limit is reached. This matches the same fix that commit f0813bcd2d9d ("net: wwan: t7xx: fix potential skb->frags overflow in RX path") did
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:516b37116967d1d6f775138ce94cb0e408eec080c0b60f16e17604218cf8902a
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/net/usb/cdc-phonet.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.31"},{"lessThan":"2.6.31","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/usb/cdc-phonet.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6807ff49bf796b3823b1e29f97b69316a40a9a94","status":"affected","version":"87cf65601e1709e57f7e28f0f7b3eb0a992c1782","versionType":"git"},{"lessThan":"0c5c65a17db729fc63ab656bdaaf0e675a9dbeac","status":"affected","version":"87cf65601e1709e57f7e28f0f7b3eb0a992c1782","versionType":"git"},{"lessThan":"6053620fdbcd89fa7e755644efdaab78e0daaae7","status":"affected","version":"87cf65601e1709e57…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/usb/cdc-phonet.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.31"},{"lessThan":"2.6.31","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/usb/cdc-phonet.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6807ff49bf796b3823b1e29f97b69316a40a9a94","status":"affected","version":"87cf65601e1709e57f7e28f0f7b3eb0a992c1782","versionType":"git"},{"lessThan":"0c5c65a17db729fc63ab656bdaaf0e675a9dbeac","status":"affected","version":"87cf65601e1709e57f7e28f0f7b3eb0a992c1782","versionType":"git"},{"lessThan":"6053620fdbcd89fa7e755644efdaab78e0daaae7","status":"affected","version":"87cf65601e1709e57…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/affected/0

Source references

9 source assertions
{"url":"https://git.kernel.org/stable/c/0c5c65a17db729fc63ab656bdaaf0e675a9dbeac"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/600dc40554dc5ad1e6f3af51f700228033f43ea7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/references/8
{"url":"https://git.kernel.org/stable/c/6053620fdbcd89fa7e755644efdaab78e0daaae7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/6807ff49bf796b3823b1e29f97b69316a40a9a94"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/9989938d13cc5ba8447eeed5a61acfcf61bc6801"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/a23b1b1aaf41e174181d5853a70e65d4d01e648c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/c183d5775129a0a7495bd61a6e57ec230dcf01e5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/d4e1946bea8d6441835eb3fd09b19237ba366a6f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/ebf75c6301c4972a87542ebf2d994c6391eb5d46"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0a25000aea6a6ac6c974c35f44b49483a633b9982409e9e0c83ebac78bea3662 · sha256:ae5557b6c01b19c4… · /containers/cna/references/6

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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