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

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。

AI Predicted 7.8 Difficulty: Easy EPSS 0.24% · P15

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux dfccd0f580445d176acea174175b3e6518cc91f7< c5e05237444f32f6cfe5d907603a232c77a08b31 affected
dfccd0f580445d176acea174175b3e6518cc91f7< 8ddaea033de051ed61b39f6b69ad54a411172b33 affected
dfccd0f580445d176acea174175b3e6518cc91f7< 7535db0624a2dede374c42040808ad9a9101d723 affected
dfccd0f580445d176acea174175b3e6518cc91f7< 7ecd3dd4f8eecd3309432156ccfe24768e009ec4 affected
dfccd0f580445d176acea174175b3e6518cc91f7< 56ad559cf6d87f250a8d203b555dfc3716afa946 affected
dfccd0f580445d176acea174175b3e6518cc91f7< 64513d0e546a1f19e390f7e5eba3872bfcbdacf5 affected
dfccd0f580445d176acea174175b3e6518cc91f7< febccb39255f9df35527b88c953b2e0deae50e53 affected
3.12 affected
… +8 more rows
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I. Basic Information for CVE-2024-46676

Vulnerability Information
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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

Vendor Product Affected Versions CPE Subscribe
Linux Linux dfccd0f580445d176acea174175b3e6518cc91f7 ~ c5e05237444f32f6cfe5d907603a232c77a08b31 -
Linux Linux 3.12 -

II. Public POCs for CVE-2024-46676

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III. Intelligence Information for CVE-2024-46676

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

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

CVE-2024-46697 9.8 CRITICAL nfsd: ensure that nfsd4_fattr_args.context is zeroed out
CVE-2024-46695 9.8 CRITICAL selinux,smack: don't bypass permissions check in inode_setsecctx hook
CVE-2024-46696 9.8 CRITICAL nfsd: fix potential UAF in nfsd4_cb_getattr_release
CVE-2024-46690 9.8 CRITICAL nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease
CVE-2024-46673 7.8 HIGH scsi: aacraid: Fix double-free on probe failure
CVE-2024-46713 7.8 HIGH perf/aux: Fix AUX buffer serialization
CVE-2024-46710 7.8 HIGH drm/vmwgfx: Prevent unmapping active read buffers
CVE-2024-46709 7.8 HIGH drm/vmwgfx: Fix prime with external buffers
CVE-2024-46705 7.8 HIGH drm/xe: reset mmio mappings with devm
CVE-2024-46687 7.8 HIGH btrfs: fix a use-after-free when hitting errors inside btrfs_submit_chunk()
CVE-2024-46678 7.8 HIGH bonding: change ipsec_lock from spin lock to mutex
CVE-2024-46674 7.8 HIGH usb: dwc3: st: fix probed platform device ref count on probe error path
CVE-2024-46680 7.8 HIGH Bluetooth: btnxpuart: Fix random crash seen while removing driver
CVE-2024-46683 7.8 HIGH drm/xe: prevent UAF around preempt fence
CVE-2024-46701 libfs: fix infinite directory reads for offset dir
CVE-2024-46685 pinctrl: single: fix potential NULL dereference in pcs_get_function()
CVE-2024-46712 drm/vmwgfx: Disable coherent dumb buffers without 3d
CVE-2024-46711 mptcp: pm: fix ID 0 endp usage after multiple re-creations
CVE-2024-46675 usb: dwc3: core: Prevent USB core invalid event buffer address access
CVE-2024-46708 pinctrl: 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

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