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CVE-2024-50233— staging: iio: frequency: ad9832: fix division by zero in ad9832_calc_freqreg()

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，该漏洞源于ad9832_calc_freqreg函数存在除以零问题。

AI Predicted 7.8 Difficulty: Easy EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux ea707584bac187c9c6c64c4eacd1c09bcc08f37b< fcd6b59f7a774558e2525251c68aa37aff748e55 affected
ea707584bac187c9c6c64c4eacd1c09bcc08f37b< 442f786c5bff8cfd756ebdeaa4aadbf05c22aa5a affected
ea707584bac187c9c6c64c4eacd1c09bcc08f37b< 2f39548f45693d86e950647012a214da6917dc9f affected
ea707584bac187c9c6c64c4eacd1c09bcc08f37b< ccbc10647aafe2b7506edb4b10e19c6c2416c162 affected
ea707584bac187c9c6c64c4eacd1c09bcc08f37b< adfbc08b94e7df08b9ed5fa26b969cc1b54c84ec affected
ea707584bac187c9c6c64c4eacd1c09bcc08f37b< dd9e1cf619c945f320e686dcaf13e37ef0b05fdd affected
ea707584bac187c9c6c64c4eacd1c09bcc08f37b< 6bd301819f8f69331a55ae2336c8b111fc933f3d affected
2.6.39 affected
… +8 more rows
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I. Basic Information for CVE-2024-50233

Vulnerability Information
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Vulnerability Title
staging: iio: frequency: ad9832: fix division by zero in ad9832_calc_freqreg()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: staging: iio: frequency: ad9832: fix division by zero in ad9832_calc_freqreg() In the ad9832_write_frequency() function, clk_get_rate() might return 0. This can lead to a division by zero when calling ad9832_calc_freqreg(). The check if (fout > (clk_get_rate(st->mclk) / 2)) does not protect against the case when fout is 0. The ad9832_write_frequency() function is called from ad9832_write(), and fout is derived from a text buffer, which can contain any value.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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ad9832_calc_freqreg函数存在除以零问题。
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 ea707584bac187c9c6c64c4eacd1c09bcc08f37b ~ fcd6b59f7a774558e2525251c68aa37aff748e55 -
Linux Linux 2.6.39 -

II. Public POCs for CVE-2024-50233

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III. Intelligence Information for CVE-2024-50233

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Patches & Fixes for CVE-2024-50233 (6)

Same Patch Batch · Linux · 2024-11-09 · 49 CVEs total

CVE-2024-50215 8.1 HIGH nvmet-auth: assign dh_key to NULL after kfree_sensitive
CVE-2024-50225 7.8 HIGH btrfs: fix error propagation of split bios
CVE-2024-50217 7.8 HIGH btrfs: fix use-after-free of block device file in __btrfs_free_extra_devids()
CVE-2024-50221 7.8 HIGH drm/amd/pm: Vangogh: Fix kernel memory out of bounds write
CVE-2024-50262 7.8 HIGH bpf: Fix out-of-bounds write in trie_get_next_key()
CVE-2024-50261 7.8 HIGH macsec: Fix use-after-free while sending the offloading packet
CVE-2024-50246 7.8 HIGH fs/ntfs3: Add rough attr alloc_size check
CVE-2024-50253 7.8 HIGH bpf: Check the validity of nr_words in bpf_iter_bits_new()
CVE-2024-50230 7.8 HIGH nilfs2: fix kernel bug due to missing clearing of checked flag
CVE-2024-50237 7.8 HIGH wifi: mac80211: do not pass a stopped vif to the driver in .get_txpower
CVE-2024-50250 7.8 HIGH fsdax: dax_unshare_iter needs to copy entire blocks
CVE-2024-50235 7.8 HIGH wifi: cfg80211: clear wdev->cqm_config pointer on free
CVE-2024-50256 7.5 HIGH netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6()
CVE-2024-50241 7.5 HIGH NFSD: Initialize struct nfsd4_copy earlier
CVE-2024-50247 7.3 HIGH fs/ntfs3: Check if more than chunk-size bytes are written
CVE-2024-50248 7.1 HIGH ntfs3: Add bounds checking to mi_enum_attr()
CVE-2024-50257 7.0 HIGH netfilter: Fix use-after-free in get_info()
CVE-2024-50222 7.0 HIGH iov_iter: fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP
CVE-2024-50245 fs/ntfs3: Fix possible deadlock in mi_read
CVE-2024-50239 phy: qcom: qmp-usb-legacy: fix NULL-deref on runtime suspend

Showing top 20 of 49 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-50233

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