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CVE-2021-47028— mt76: mt7915: fix txrate reporting

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.

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。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

CVSS 7.1 · High EPSS 0.35% · P27

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux e57b7901469fc0b021930b83a8094baaf3d81b09< dfc8a71448c7d4fec38fb22bdc8a76d79c14b6da affected
e57b7901469fc0b021930b83a8094baaf3d81b09< 4bd926e5ca88eac4d95eacb806b229f8729bc62e affected
e57b7901469fc0b021930b83a8094baaf3d81b09< f43b941fd61003659a3f0e039595e5e525917aa8 affected
5.8 affected
< 5.8 unaffected
5.11.21≤ 5.11.* unaffected
5.12.4≤ 5.12.* unaffected
5.13≤ * unaffected
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I. Basic Information for CVE-2021-47028

Vulnerability Information
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Vulnerability Title
mt76: mt7915: fix txrate reporting
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix txrate reporting Properly check rate_info to fix unexpected reporting. [ 1215.161863] Call trace: [ 1215.164307] cfg80211_calculate_bitrate+0x124/0x200 [cfg80211] [ 1215.170139] ieee80211s_update_metric+0x80/0xc0 [mac80211] [ 1215.175624] ieee80211_tx_status_ext+0x508/0x838 [mac80211] [ 1215.181190] mt7915_mcu_get_rx_rate+0x28c/0x8d0 [mt7915e] [ 1215.186580] mt7915_mac_tx_free+0x324/0x7c0 [mt7915e] [ 1215.191623] mt7915_queue_rx_skb+0xa8/0xd0 [mt7915e] [ 1215.196582] mt76_dma_cleanup+0x7b0/0x11d0 [mt76] [ 1215.201276] __napi_poll+0x38/0xf8 [ 1215.204668] napi_workfn+0x40/0x80 [ 1215.208062] process_one_work+0x1fc/0x390 [ 1215.212062] worker_thread+0x48/0x4d0 [ 1215.215715] kthread+0x120/0x128 [ 1215.218935] ret_from_fork+0x10/0x1c
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/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。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux e57b7901469fc0b021930b83a8094baaf3d81b09 ~ dfc8a71448c7d4fec38fb22bdc8a76d79c14b6da -
Linux Linux 5.8 -

II. Public POCs for CVE-2021-47028

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III. Intelligence Information for CVE-2021-47028

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Other References for CVE-2021-47028 (3)

Same Patch Batch · Linux · 2024-02-28 · 86 CVEs total

CVE-2021-47013 9.8 CRITICAL net:emac/emac-mac: Fix a use after free in emac_mac_tx_buf_send
CVE-2021-47036 9.8 CRITICAL udp: skip L4 aggregation for UDP tunnel packets
CVE-2021-46999 9.8 CRITICAL sctp: do asoc update earlier in sctp_sf_do_dupcook_a
CVE-2021-47035 8.8 HIGH iommu/vt-d: Remove WO permissions on second-level paging entries
CVE-2021-47017 8.8 HIGH ath10k: Fix a use after free in ath10k_htc_send_bundle
CVE-2021-47049 8.4 HIGH Drivers: hv: vmbus: Use after free in __vmbus_open()
CVE-2020-36785 7.8 HIGH media: atomisp: Fix use after free in atomisp_alloc_css_stat_bufs()
CVE-2021-47012 7.8 HIGH RDMA/siw: Fix a use after free in siw_alloc_mr
CVE-2021-46984 7.8 HIGH kyber: fix out of bounds access when preempted
CVE-2021-46992 7.8 HIGH netfilter: nftables: avoid overflows in nft_hash_buckets()
CVE-2021-46977 7.8 HIGH KVM: VMX: Disable preemption when probing user return MSRs
CVE-2021-47011 7.8 HIGH mm: memcontrol: slab: fix obtain a reference to a freeing memcg
CVE-2021-47040 7.8 HIGH io_uring: fix overflows checks in provide buffers
CVE-2020-36787 7.8 HIGH media: aspeed: fix clock handling logic
CVE-2021-47014 7.8 HIGH net/sched: act_ct: fix wild memory access when clearing fragments
CVE-2021-46993 7.8 HIGH sched: Fix out-of-bound access in uclamp
CVE-2021-47048 7.8 HIGH spi: spi-zynqmp-gqspi: fix use-after-free in zynqmp_qspi_exec_op
CVE-2021-46998 7.8 HIGH ethernet:enic: Fix a use after free bug in enic_hard_start_xmit
CVE-2021-47041 7.5 HIGH nvmet-tcp: fix incorrect locking in state_change sk callback
CVE-2021-47001 7.5 HIGH xprtrdma: Fix cwnd update ordering

Showing top 20 of 86 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47028

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