CVE-2026-53088 PUBLISHED

net: bcmgenet: fix off-by-one in bcmgenet_put_txcb

Assigner: Linux
Reserved: 09.06.2026 Published: 24.06.2026 Updated: 28.06.2026

In the Linux kernel, the following vulnerability has been resolved:

net: bcmgenet: fix off-by-one in bcmgenet_put_txcb

The write_ptr points to the next open tx_cb. We want to return the tx_cb that gets rewinded, so we must rewind the pointer first then return the tx_cb that it points to. That way the txcb can be correctly cleaned up.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 to 14e9f86564fff7bcf7f45c1b69080e837b31d185 (excl.)
  • affected from 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 to fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de (excl.)
  • affected from 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 to 85f34ec320d3881badfd4edc5fee5cd5012bb54d (excl.)
  • affected from 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 to 2a74590170427a3ca7cc4bb8690cdd559129c29c (excl.)
  • affected from 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 to 29394f722f620281f2ee9a47f947734e53d72c90 (excl.)
  • affected from 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 to 4cab761fc51c65aef741fcece4a18f3554edbc09 (excl.)
  • affected from 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 to 72df896e31ddd06fcc5a789f025ad7a62a18bc9b (excl.)
  • affected from 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 to 57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38 (excl.)
  • Version 3bdf77194ea822390b405639b77659071fd2c2e9 is affected
  • affected from 3.16.50 to 3.17 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 4.13 is affected
  • unaffected from 0 to 4.13 (excl.)
  • unaffected from 5.10.258 to 5.10.* (incl.)
  • unaffected from 5.15.209 to 5.15.* (incl.)
  • unaffected from 6.1.175 to 6.1.* (incl.)
  • unaffected from 6.6.141 to 6.6.* (incl.)
  • unaffected from 6.12.91 to 6.12.* (incl.)
  • unaffected from 6.18.33 to 6.18.* (incl.)
  • unaffected from 7.0.10 to 7.0.* (incl.)
  • unaffected from 7.1 to * (incl.)

References