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CVE-2026-43462— net: spacemit: Fix error handling in emac_tx_mem_map()

CVSS 7.5 · High EPSS 0.34% · P26

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinuxbfec6d7f2001c7470c3cd261ae65a3ba8737f226< c34ebd7b24ea70be3c6fdb6936f79f593f37df60affected
bfec6d7f2001c7470c3cd261ae65a3ba8737f226< edeaba385318f60ec1b32470da4d5eb800294d16affected
bfec6d7f2001c7470c3cd261ae65a3ba8737f226< 86292155bea578ebab0ca3b65d4d87ecd8a0e9eaaffected
6.18affected
< 6.18unaffected
6.18.19≤ 6.18.*unaffected
6.19.9≤ 6.19.*unaffected
7.0≤ *unaffected
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I. Basic Information for CVE-2026-43462

Vulnerability Information
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Vulnerability Title
net: spacemit: Fix error handling in emac_tx_mem_map()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: spacemit: Fix error handling in emac_tx_mem_map() The DMA mappings were leaked on mapping error. Free them with the existing emac_free_tx_buf() function.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 spacemit组件中emac_tx_mem_map函数在映射错误时未释放DMA映射，导致DMA映射泄漏。
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 bfec6d7f2001c7470c3cd261ae65a3ba8737f226 ~ c34ebd7b24ea70be3c6fdb6936f79f593f37df60 -
LinuxLinux 6.18 -

II. Public POCs for CVE-2026-43462

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III. Intelligence Information for CVE-2026-43462

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Patches & Fixes for CVE-2026-43462 (3)

Same Patch Batch · Linux · 2026-05-08 · 197 CVEs total

CVE-2026-433849.8 CRITICALnet/tcp-ao: Fix MAC comparison to be constant-time
CVE-2026-433419.8 CRITICALnet/ipv6: ioam6: prevent schema length wraparound in trace fill
CVE-2026-433799.8 CRITICALksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()
CVE-2026-433049.8 CRITICALlibceph: define and enforce CEPH_MAX_KEY_LEN
CVE-2026-433789.8 CRITICALsmb: server: fix use-after-free in smb2_open()
CVE-2026-433769.8 CRITICALksmbd: fix use-after-free by using call_rcu() for oplock_info
CVE-2026-434149.8 CRITICALscsi: qla2xxx: Completely fix fcport double free
CVE-2026-434029.8 CRITICALkthread: consolidate kthread exit paths to prevent use-after-free
CVE-2026-434659.8 CRITICALnet/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ
CVE-2026-433839.4 CRITICALnet/tcp-md5: Fix MAC comparison to be constant-time
CVE-2026-434069.1 CRITICALlibceph: prevent potential out-of-bounds reads in process_message_header()
CVE-2026-434079.1 CRITICALlibceph: Fix potential out-of-bounds access in ceph_handle_auth_reply()
CVE-2026-434038.8 HIGHnsfs: tighten permission checks for ns iteration ioctls
CVE-2026-433918.8 HIGHnsfs: tighten permission checks for handle opening
CVE-2026-432848.8 HIGHxfrm: esp: avoid in-place decrypt on shared skb frags
CVE-2026-433228.8 HIGHBluetooth: hci_sync: Fix UAF in le_read_features_complete
CVE-2026-433348.8 HIGHBluetooth: SMP: force responder MITM requirements before building the pairing response
CVE-2026-432918.3 HIGHnet: nfc: nci: Fix parameter validation for packet data
CVE-2026-433658.2 HIGHxfs: fix undersized l_iclog_roundoff values
CVE-2026-434668.2 HIGHnet/mlx5e: Fix DMA FIFO desync on error CQE SQ recovery

Showing top 20 of 197 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43462

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