Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2024-46676— nfc: pn533: Add poll mod list filling check

AI Predicted 7.8 Difficulty: Easy EPSS 0.24% · P16

Affected Version Matrix 16

VendorProductVersion RangeStatus
LinuxLinuxdfccd0f580445d176acea174175b3e6518cc91f7< c5e05237444f32f6cfe5d907603a232c77a08b31affected
dfccd0f580445d176acea174175b3e6518cc91f7< 8ddaea033de051ed61b39f6b69ad54a411172b33affected
dfccd0f580445d176acea174175b3e6518cc91f7< 7535db0624a2dede374c42040808ad9a9101d723affected
dfccd0f580445d176acea174175b3e6518cc91f7< 7ecd3dd4f8eecd3309432156ccfe24768e009ec4affected
dfccd0f580445d176acea174175b3e6518cc91f7< 56ad559cf6d87f250a8d203b555dfc3716afa946affected
dfccd0f580445d176acea174175b3e6518cc91f7< 64513d0e546a1f19e390f7e5eba3872bfcbdacf5affected
dfccd0f580445d176acea174175b3e6518cc91f7< febccb39255f9df35527b88c953b2e0deae50e53affected
3.12affected
… +8 more rows
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2024-46676

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
nfc: pn533: Add poll mod list filling check
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Add poll mod list filling check In case of im_protocols value is 1 and tm_protocols value is 0 this combination successfully passes the check 'if (!im_protocols && !tm_protocols)' in the nfc_start_poll(). But then after pn533_poll_create_mod_list() call in pn533_start_poll() poll mod list will remain empty and dev->poll_mod_count will remain 0 which lead to division by zero. Normally no im protocol has value 1 in the mask, so this combination is not expected by driver. But these protocol values actually come from userspace via Netlink interface (NFC_CMD_START_POLL operation). So a broken or malicious program may pass a message containing a "bad" combination of protocol parameter values so that dev->poll_mod_count is not incremented inside pn533_poll_create_mod_list(), thus leading to division by zero. Call trace looks like: nfc_genl_start_poll() nfc_start_poll() ->start_poll() pn533_start_poll() Add poll mod list filling check. Found by Linux Verification Center (linuxtesting.org) with SVACE.
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，该漏洞源于在填充轮询模式列表时未检查填充是否成功，可能导致除以零错误。
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 dfccd0f580445d176acea174175b3e6518cc91f7 ~ c5e05237444f32f6cfe5d907603a232c77a08b31 -
LinuxLinux 3.12 -

II. Public POCs for CVE-2024-46676

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2024-46676

请登录查看更多情报信息。

Patches & Fixes for CVE-2024-46676 (7)

Same Patch Batch · Linux · 2024-09-13 · 40 CVEs total

CVE-2024-466979.8 CRITICALnfsd: ensure that nfsd4_fattr_args.context is zeroed out
CVE-2024-466959.8 CRITICALselinux,smack: don't bypass permissions check in inode_setsecctx hook
CVE-2024-466969.8 CRITICALnfsd: fix potential UAF in nfsd4_cb_getattr_release
CVE-2024-466909.8 CRITICALnfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease
CVE-2024-466737.8 HIGHscsi: aacraid: Fix double-free on probe failure
CVE-2024-467137.8 HIGHperf/aux: Fix AUX buffer serialization
CVE-2024-467107.8 HIGHdrm/vmwgfx: Prevent unmapping active read buffers
CVE-2024-467097.8 HIGHdrm/vmwgfx: Fix prime with external buffers
CVE-2024-467057.8 HIGHdrm/xe: reset mmio mappings with devm
CVE-2024-466877.8 HIGHbtrfs: fix a use-after-free when hitting errors inside btrfs_submit_chunk()
CVE-2024-466787.8 HIGHbonding: change ipsec_lock from spin lock to mutex
CVE-2024-466747.8 HIGHusb: dwc3: st: fix probed platform device ref count on probe error path
CVE-2024-466807.8 HIGHBluetooth: btnxpuart: Fix random crash seen while removing driver
CVE-2024-466837.8 HIGHdrm/xe: prevent UAF around preempt fence
CVE-2024-46701libfs: fix infinite directory reads for offset dir
CVE-2024-46685pinctrl: single: fix potential NULL dereference in pcs_get_function()
CVE-2024-46712drm/vmwgfx: Disable coherent dumb buffers without 3d
CVE-2024-46711mptcp: pm: fix ID 0 endp usage after multiple re-creations
CVE-2024-46675usb: dwc3: core: Prevent USB core invalid event buffer address access
CVE-2024-46708pinctrl: qcom: x1e80100: Fix special pin offsets

Showing top 20 of 40 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-46676

No comments yet

Leave a comment