Skip to content
CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-89906

LoongArch: BPF: Refactor jump offset calculation in tail call

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Refactor jump offset calculation in tail call The old macro-based jmp_offset calculation derives the jump distance from a stale prior-pass code stride, which can lead to wrong branch offsets and soft lockups under extra JIT passes. Fix this by calculating the offset directly on the absolute target: "ctx->offset[insn + 1] - ctx->idx". To avoid a false 16-bit range check abort during size estimation, add a "ctx->image == NULL" guard to inject a safe dummy offset.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 17c010fe45def335fe03a0718935416b04c7f349 to < 50fbc294e4e96246d60cd66f98acf043a362e3a0affected
  • f83d469e16bb1f75991ca67c56786fb2aaa42bea to < 89819868cde78cb2f748533785a46a3430873f20affected
  • cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 to < 882b8912b7e92341fdb115ba0e2e5142a28684ffaffected
  • cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 to < 96f44d493c280ea161569c43d7ed0f3b0815803aaffected
  • cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 to < 37d545d12f21c4d50612ecaebd7ae1e5bf91b2d8affected
  • 1a782fa32e644aa9fbae6c8488f3e61221ac96e1affected
  • f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94faffected
  • 9262e3e04621558e875eb5afb5e726b648cd5949affected
  • 6.6.103 to < 6.6.160affected
  • 6.12.43 to < 6.12.114affected
  • 6.1.149 to < 6.2affected
  • 6.15.11 to < 6.16affected
  • 6.16.2 to < 6.17affected

Linux Linux

Default version status: affected

  • 6.17affected
  • 0 to < 6.17unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.114 to ≤ 6.12.*unaffected
  • 6.18.51 to ≤ 6.18.*unaffected
  • 7.2.5 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References