CVE-2024-46740— binder: fix UAF caused by offsets overwrite
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2024-46740
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
binder: fix UAF caused by offsets overwrite
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: binder: fix UAF caused by offsets overwrite Binder objects are processed and copied individually into the target buffer during transactions. Any raw data in-between these objects is copied as well. However, this raw data copy lacks an out-of-bounds check. If the raw data exceeds the data section size then the copy overwrites the offsets section. This eventually triggers an error that attempts to unwind the processed objects. However, at this point the offsets used to index these objects are now corrupted. Unwinding with corrupted offsets can result in decrements of arbitrary nodes and lead to their premature release. Other users of such nodes are left with a dangling pointer triggering a use-after-free. This issue is made evident by the following KASAN report (trimmed): ================================================================== BUG: KASAN: slab-use-after-free in _raw_spin_lock+0xe4/0x19c Write of size 4 at addr ffff47fc91598f04 by task binder-util/743 CPU: 9 UID: 0 PID: 743 Comm: binder-util Not tainted 6.11.0-rc4 #1 Hardware name: linux,dummy-virt (DT) Call trace: _raw_spin_lock+0xe4/0x19c binder_free_buf+0x128/0x434 binder_thread_write+0x8a4/0x3260 binder_ioctl+0x18f0/0x258c [...] Allocated by task 743: __kmalloc_cache_noprof+0x110/0x270 binder_new_node+0x50/0x700 binder_transaction+0x413c/0x6da8 binder_thread_write+0x978/0x3260 binder_ioctl+0x18f0/0x258c [...] Freed by task 745: kfree+0xbc/0x208 binder_thread_read+0x1c5c/0x37d4 binder_ioctl+0x16d8/0x258c [...] ================================================================== To avoid this issue, let's check that the raw data copy is within the boundaries of the data section.
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，该漏洞源于内存释放后重用。
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
II. Public POCs for CVE-2024-46740
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2024-46740
请登录查看更多情报信息。
Same Patch Batch · Linux · 2024-09-18 · 85 CVEs total
| CVE-2024-46770 | ice: Add netif_device_attach/detach into PF reset flow | |
| CVE-2024-46781 | nilfs2: fix missing cleanup on rollforward recovery error | |
| CVE-2024-46768 | hwmon: (hp-wmi-sensors) Check if WMI event data exists | |
| CVE-2024-46769 | spi: intel: Add check devm_kasprintf() returned value | |
| CVE-2024-46767 | net: phy: Fix missing of_node_put() for leds | |
| CVE-2024-46765 | ice: protect XDP configuration with a mutex | |
| CVE-2024-46763 | fou: Fix null-ptr-deref in GRO. | |
| CVE-2024-46762 | xen: privcmd: Fix possible access to a freed kirqfd instance | |
| CVE-2024-46761 | pci/hotplug/pnv_php: Fix hotplug driver crash on Powernv | |
| CVE-2024-46764 | bpf: add check for invalid name in btf_name_valid_section() | |
| CVE-2024-46771 | can: bcm: Remove proc entry when dev is unregistered. | |
| CVE-2024-46772 | drm/amd/display: Check denominator crb_pipes before used | |
| CVE-2024-46773 | drm/amd/display: Check denominator pbn_div before used | |
| CVE-2024-46774 | powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas() | |
| CVE-2024-46775 | drm/amd/display: Validate function returns | |
| CVE-2024-46776 | drm/amd/display: Run DC_LOG_DC after checking link->link_enc | |
| CVE-2024-46777 | udf: Avoid excessive partition lengths | |
| CVE-2024-46778 | drm/amd/display: Check UnboundedRequestEnabled's value | |
| CVE-2024-46779 | drm/imagination: Free pvr_vm_gpuva after unlink | |
| CVE-2024-46780 | nilfs2: protect references to superblock parameters exposed in sysfs |
Showing top 20 of 85 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2024-46740
No comments yet