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CVE-2021-47560— mlxsw: spectrum: Protect driver from buggy firmware

EPSS 0.03% · P8

Affected Version Matrix 8

VendorProductVersion RangeStatus
LinuxLinux28b1987ef5064dd5c43538ba1168ef7b801f3cad< 90d0736876c50ecde1a3275636a06b9ddb1cace9affected
28b1987ef5064dd5c43538ba1168ef7b801f3cad< da4d70199e5d82da664a80077508d6c18f5e76dfaffected
28b1987ef5064dd5c43538ba1168ef7b801f3cad< 63b08b1f6834bbb0b4f7783bf63b80c8c8e9a047affected
5.4affected
< 5.4unaffected
5.10.83≤ 5.10.*unaffected
5.15.6≤ 5.15.*unaffected
5.16≤ *unaffected
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I. Basic Information for CVE-2021-47560

Vulnerability Information
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Vulnerability Title
mlxsw: spectrum: Protect driver from buggy firmware
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum: Protect driver from buggy firmware When processing port up/down events generated by the device's firmware, the driver protects itself from events reported for non-existent local ports, but not the CPU port (local port 0), which exists, but lacks a netdev. This can result in a NULL pointer dereference when calling netif_carrier_{on,off}(). Fix this by bailing early when processing an event reported for the CPU port. Problem was only observed when running on top of a buggy emulator.
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 mlxsw:spectrum 模块固件中存在缺陷。
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 28b1987ef5064dd5c43538ba1168ef7b801f3cad ~ 90d0736876c50ecde1a3275636a06b9ddb1cace9 -
LinuxLinux 5.4 -

II. Public POCs for CVE-2021-47560

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III. Intelligence Information for CVE-2021-47560

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Same Patch Batch · Linux · 2024-05-24 · 73 CVEs total

CVE-2021-47547net: tulip: de4x5: fix the problem that the array 'lp->phy[8]' may be out of bound
CVE-2021-47569io_uring: fail cancellation for EXITING tasks
CVE-2021-47567powerpc/32: Fix hardlockup on vmap stack overflow
CVE-2021-47555net: vlan: fix underflow for the real_dev refcnt
CVE-2021-47553sched/scs: Reset task stack state in bringup_cpu()
CVE-2021-47551drm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again
CVE-2021-47552blk-mq: cancel blk-mq dispatch work in both blk_cleanup_queue and disk_release()
CVE-2021-47550drm/amd/amdgpu: fix potential memleak
CVE-2021-47548ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst
CVE-2021-47549sata_fsl: fix UAF in sata_fsl_port_stop when rmmod sata_fsl
CVE-2021-47554vdpa_sim: avoid putting an uninitialized iova_domain
CVE-2021-47546ipv6: fix memory leak in fib6_rule_suppress
CVE-2021-47544tcp: fix page frag corruption on page fault
CVE-2021-47542net: qlogic: qlcnic: Fix a NULL pointer dereference in qlcnic_83xx_add_rings()
CVE-2021-47541net/mlx4_en: Fix an use-after-free bug in mlx4_en_try_alloc_resources()
CVE-2021-47540mt76: mt7915: fix NULL pointer dereference in mt7915_get_phy_mode
CVE-2021-47539rxrpc: Fix rxrpc_peer leak in rxrpc_look_up_bundle()
CVE-2021-47538rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()
CVE-2021-47536net/smc: fix wrong list_del in smc_lgr_cleanup_early
CVE-2021-47537octeontx2-af: Fix a memleak bug in rvu_mbox_init()

Showing top 20 of 73 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2021-47560

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