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CVE-2026-98392— Bluetooth: btintel_pcie: fix tx_handle bounds off-by-one

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Linux 内核中，已修复以下漏洞： 蓝牙：btintel_pcie：修复 tx_handle 边界检查中的“差一错误”（off-by-one） 对 txq->urbd0s/tfds/bufs 的有效索引范围是 0 到 txq->count - 1，因此当 tfd_index 等于 txq->count 时，已经超出了有效范围。请将 btintel_pcie_msix_tx_handle() 函数中的边界检查条件从 “> txq->count” 修改为 “>= txq->count”。 此问题由 Claude

AI Predicted 4.4 Difficulty: Moderate

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux c2b636b3f788d10486a6691ad6dd3ec4c93bd78e< 72bbd7c815ef92399b7b109977ae4669ce22ee6e affected
c2b636b3f788d10486a6691ad6dd3ec4c93bd78e< 932a87444107e6724d808082676bba5c915c98ad affected
c2b636b3f788d10486a6691ad6dd3ec4c93bd78e< a641201a9b4d69ee8a7ef35f7aa597dddee6b9ee affected
c2b636b3f788d10486a6691ad6dd3ec4c93bd78e< 3dd1b41f96aad08444be1b7626c89de2b9f2abd4 affected
6.10 affected
< 6.10 unaffected
6.12.111≤ 6.12.* unaffected
6.18.53≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-98392

Vulnerability Information
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Vulnerability Title
Bluetooth: btintel_pcie: fix tx_handle bounds off-by-one
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel_pcie: fix tx_handle bounds off-by-one Valid indices into txq->urbd0s/tfds/bufs are 0..txq->count-1, so tfd_index == txq->count is already out of range. Change the guard in btintel_pcie_msix_tx_handle() from '> txq->count' to '>= txq->count'. This issue was reported by Claude Mythos.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux c2b636b3f788d10486a6691ad6dd3ec4c93bd78e ~ 72bbd7c815ef92399b7b109977ae4669ce22ee6e -
Linux Linux 6.10 -

II. Public POCs for CVE-2026-98392

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III. Intelligence Information for CVE-2026-98392

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Other References for CVE-2026-98392 (4)

Same Patch Batch · Linux · 2026-10-14 · 46 CVEs total

CVE-2026-98399 s390/ipl: Fix NULL deref in dump_reipl without re-IPL parm block
CVE-2026-98395 powerpc/entry: Fix irq_soft_mask corruption on replayed interrupt exit
CVE-2026-98394 af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer.
CVE-2026-98391 drm/xe: Guard page-fault worker with runtime PM check
CVE-2026-98389 drm/amdgpu: skip gfx switch_power_profile during GPU reset
CVE-2026-98388 exec: do_close_on_exec() before taking exec_update_lock
CVE-2026-98387 s390/crypto: Fix skcipher_walk return code handling in aes_s390
CVE-2026-98386 scsi: qla2xxx: Use memset_io() to clear QLAFX00 request ring slot
CVE-2026-98390 x86/amd_node: Avoid divide by zero on virtualized systems
CVE-2026-98398 locking/lockdep: Invalidate stale class_cache entries for zapped classes
CVE-2026-98397 platform/x86: x86-android-tablets: hold device reference for secondary fwnode teardown
CVE-2026-98400 s390/ipl: Fix NULL deref in kdump without re-IPL parm block
CVE-2026-98402 net: icmp: avoid invalid transport header access in icmp_send tracepoint
CVE-2026-98401 net: iptunnel: fix stale transport header during tunnel decapsulation
CVE-2026-98403 s390/boot: Avoid IPL parameter append past command line
CVE-2026-98404 drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create()
CVE-2026-98405 smb: client: fix missing iov bounds check in parse_posix_sids()
CVE-2026-98406 wifi: mac80211: avoid WARN in set_bitrate_mask when sdata not in driver
CVE-2026-98408 watchdog: rzv2h: Avoid division by zero
CVE-2026-98407 wifi: rsi: fix heap OOB write on key removal

Showing top 20 of 46 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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