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CVE-2026-45849— net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()

AI Predicted 3.1 Difficulty: Moderate EPSS 0.03% · P10

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux960ec92774e152b677ccd0006abcab7b9dd814c2< 0b217a40156f497e09dd20d3f7baec40c785f386affected
e83b49ecb569c9c5fa7cc30e55cf2c15f71f9f39< cc1b179f778f98270bdbbb48d183b4b6427ae198affected
c5e12ac3beb0dd3a718296b2d8af5528e9ab728e< 7ac58d8832802ec89baa7539e13e6d58a88cce04affected
c5e12ac3beb0dd3a718296b2d8af5528e9ab728e< 51c32ae7fae14552d79f7139614b77c1bbd57a48affected
c5e12ac3beb0dd3a718296b2d8af5528e9ab728e< 63da961381e0d979459dede713001f8452364477affected
c5e12ac3beb0dd3a718296b2d8af5528e9ab728e< 026f6513c5880c2c89e38ad66bbec2868f978605affected
609cd73bf38bbd48f1e695e01802114b01aa8811affected
6.1.107< 6.1.165affected
… +10 more rows
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I. Basic Information for CVE-2026-45849

Vulnerability Information
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Vulnerability Title
net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: mscc: ocelot: add missing lock protection in ocelot_port_xmit_inj() ocelot_port_xmit_inj() calls ocelot_can_inject() and ocelot_port_inject_frame() without holding the injection group lock. Both functions contain lockdep_assert_held() for the injection lock, and the correct caller felix_port_deferred_xmit() properly acquires the lock using ocelot_lock_inj_grp() before calling these functions. Add ocelot_lock_inj_grp()/ocelot_unlock_inj_grp() around the register injection path to fix the missing lock protection. The FDMA path is not affected as it uses its own locking mechanism.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于net mscc ocelot模块在ocelot_port_xmit_inj()函数中缺少注入组锁保护。
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 960ec92774e152b677ccd0006abcab7b9dd814c2 ~ 0b217a40156f497e09dd20d3f7baec40c785f386 -
LinuxLinux 6.11 -

II. Public POCs for CVE-2026-45849

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III. Intelligence Information for CVE-2026-45849

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Patches & Fixes for CVE-2026-45849 (6)

Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total

CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-460378.2 HIGHipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-458438.2 HIGHslip: bound decode() reads against the compressed packet length
CVE-2026-460108.1 HIGHrxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-460998.1 HIGHnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-460767.9 HIGHKVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-458787.8 HIGHdrm/amdkfd: Fix watch_id bounds checking in debug address watch v2
CVE-2026-459597.8 HIGHcrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree
CVE-2026-460117.8 HIGHmedia: mtk-jpeg: fix use-after-free in release path due to uncancelled work
CVE-2026-458947.8 HIGHiommu/vt-d: Clear Present bit before tearing down PASID entry
CVE-2026-460157.8 HIGHtcp: call sk_data_ready() after listener migration
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
CVE-2026-460537.8 HIGHnet: rds: fix MR cleanup on copy error
CVE-2026-458627.8 HIGHiommu/vt-d: Flush cache for PASID table before using it

Showing top 20 of 276 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-45849

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