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CVE-2025-21793— spi: sn-f-ospi: Fix division by zero

EPSS 0.01% · P1

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinux1b74dd64c8612619e399e5a31da79a3636914495< 966328191b4c389c0f2159fa242915f51cbc1679affected
1b74dd64c8612619e399e5a31da79a3636914495< 4df6f005bef04a3dd16c028124a1b5684db3922baffected
1b74dd64c8612619e399e5a31da79a3636914495< 7434135553bc03809a55803ee6a8dcaae6240d55affected
1b74dd64c8612619e399e5a31da79a3636914495< 3588b1c0fde2f58d166e3f94a5a58d64b893526caffected
6.2affected
< 6.2unaffected
6.6.79≤ 6.6.*unaffected
6.12.16≤ 6.12.*unaffected
… +2 more rows
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I. Basic Information for CVE-2025-21793

Vulnerability Information
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Vulnerability Title
spi: sn-f-ospi: Fix division by zero
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: spi: sn-f-ospi: Fix division by zero When there is no dummy cycle in the spi-nor commands, both dummy bus cycle bytes and width are zero. Because of the cpu's warning when divided by zero, the warning should be avoided. Return just zero to avoid such calculations.
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，该漏洞源于未处理除零错误。
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 1b74dd64c8612619e399e5a31da79a3636914495 ~ 966328191b4c389c0f2159fa242915f51cbc1679 -
LinuxLinux 6.2 -

II. Public POCs for CVE-2025-21793

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III. Intelligence Information for CVE-2025-21793

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Same Patch Batch · Linux · 2025-02-27 · 177 CVEs total

CVE-2025-217567.8 HIGHvsock: Keep the binding until socket destruction
CVE-2025-21770iommu: Fix potential memory leak in iopf_queue_remove_device()
CVE-2025-21761openvswitch: use RCU protection in ovs_vport_cmd_fill_info()
CVE-2025-21763neighbour: use RCU protection in __neigh_notify()
CVE-2025-21762arp: use RCU protection in arp_xmit()
CVE-2025-21764ndisc: use RCU protection in ndisc_alloc_skb()
CVE-2025-21765ipv6: use RCU protection in ip6_default_advmss()
CVE-2025-21766ipv4: use RCU protection in __ip_rt_update_pmtu()
CVE-2025-21767clocksource: Use migrate_disable() to avoid calling get_random_u32() in atomic context
CVE-2025-21769ptp: vmclock: Add .owner to vmclock_miscdev_fops
CVE-2025-21768net: ipv6: fix dst ref loops in rpl, seg6 and ioam6 lwtunnels
CVE-2025-21771sched_ext: Fix incorrect autogroup migration detection
CVE-2025-21776USB: hub: Ignore non-compliant devices with too many configs or interfaces
CVE-2025-21781batman-adv: fix panic during interface removal
CVE-2025-21780drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()
CVE-2025-21779KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel
CVE-2025-21778tracing: Do not allow mmap() of persistent ring buffer
CVE-2025-21777ring-buffer: Validate the persistent meta data subbuf array
CVE-2025-21775can: ctucanfd: handle skb allocation failure
CVE-2025-21773can: etas_es58x: fix potential NULL pointer dereference on udev->serial

Showing top 20 of 177 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21793

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