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CVE-2026-74507— Bluetooth: HIDP: validate numbered report payloads

CVSS 7.1 · High EPSS 0.23% · P14

Possible ATT&CK Techniques 1AI

T1207 · Rogue Domain Controller

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinux0ff1731a1ae51e8e48cd559d70db536281c47f8e< b7ad105d46acd828e424454815e4cd31069e047aaffected
0ff1731a1ae51e8e48cd559d70db536281c47f8e< 7e7162427659b70ea17cd41b1f79e2e64c246690affected
0ff1731a1ae51e8e48cd559d70db536281c47f8e< 27cc0e603355c585f1e5da8398faa4d36d498188affected
0ff1731a1ae51e8e48cd559d70db536281c47f8e< 9c841f59e10b5d75c398a3fc6b2da448d2a2276baffected
0ff1731a1ae51e8e48cd559d70db536281c47f8e< 34f53d27b81a16a02828c8fdfa4e02badc326f17affected
2.6.39affected
< 2.6.39unaffected
6.6.151≤ 6.6.*unaffected
… +4 more rows
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I. Basic Information for CVE-2026-74507

Vulnerability Information
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Vulnerability Title
Bluetooth: HIDP: validate numbered report payloads
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: validate numbered report payloads When hidp_get_raw_report() waits for a numbered report, hidp_process_data() compares the expected report number with skb->data[0]. A connected HIDP peer can reply with only a DATA transaction header, leaving the skb empty after the header is removed. KMSAN reports an uninitialized-value use in hidp_session_run(), with the value originating in __alloc_skb() through vhci_write(). The transaction header checks remove the empty-frame reports, but this report remains until the payload check is added. The comparison can also consume a peer-controlled byte beyond the declared L2CAP PDU. A DATA | FEATURE response followed by an extra 0x01 byte made the current code accept that byte as report ID 1 and complete HIDIOCGFEATURE with a zero-byte result. With this change the malformed response is rejected with -EIO, while a subsequent valid response still succeeds. Require a payload byte before comparing a numbered report ID. Unnumbered reports continue to accept an empty payload.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 2.6.39版本存在安全漏洞，该漏洞源于对编号报告负载验证不足，可能导致未初始化值使用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 0ff1731a1ae51e8e48cd559d70db536281c47f8e ~ b7ad105d46acd828e424454815e4cd31069e047a -
LinuxLinux 2.6.39 -

II. Public POCs for CVE-2026-74507

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III. Intelligence Information for CVE-2026-74507

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Patches & Fixes for CVE-2026-74507 (4)

Same Patch Batch · Linux · 2026-08-15 · 845 CVEs total

CVE-2026-7428010.0 CRITICALcrypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-7427910.0 CRITICALcrypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-7447510.0 CRITICALvxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-7242110.0 CRITICALipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-7430910.0 CRITICALvdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-7240810.0 CRITICALgeneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-7240710.0 CRITICALgeneve: validate inner network offset in geneve_gro_complete()
CVE-2026-724939.9 CRITICALnet: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-722219.8 CRITICALsunrpc: wait for in-flight TLS handshake callback when cancel loses race
CVE-2026-724669.8 CRITICALxprtrdma: Fix bcall rep leak and unbounded peek
CVE-2026-723239.8 CRITICALipv4: igmp: Fix potential UAF in igmp_gq_start_timer()
CVE-2026-724639.8 CRITICALxfrm: Fix dev use-after-free in xfrm async resumption
CVE-2026-720699.8 CRITICALlocking/rt: Fix the incorrect RCU protection in rt_spin_unlock()
CVE-2026-723399.8 CRITICALqede: fix off-by-one in BD ring consumption on build_skb failure
CVE-2026-720659.8 CRITICALnet: mana: Validate the packet length reported by the NIC
CVE-2026-720649.8 CRITICALnet: mana: Sync page pool RX frags for CPU
CVE-2026-742559.8 CRITICALtipc: fix UAF in tipc_l2_send_msg()
CVE-2026-743769.8 CRITICALmd/raid10: reset read_slot when reusing r10bio for discard
CVE-2026-744959.8 CRITICALigbvf: Fix leak in TX DMA error cleanup
CVE-2026-722209.8 CRITICALsunrpc: harden rq_procinfo lifecycle to prevent double-free

Showing top 20 of 845 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-74507

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