The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
7,647 vulnerabilities with CWE-416
CVE-2021-47459
HIGH
Linux Kernel 5.4-5.4.156 - Use-After-Free in j1939_netdev_start
CVSS 7.8
CVE-2021-47456
HIGH
Linux Kernel - Use-After-Free in peak_pci_remove()
CVSS 8.4
CVE-2021-47427
HIGH
Linux Kernel 5.14-5.14.11 - Use-After-Free in iSCSI Task Abort Handler
CVSS 7.8
CVE-2021-47402
HIGH
Linux Kernel - Use-After-Free in fl_walk Function
CVSS 7.8
CVE-2021-47394
HIGH
Linux Kernel 5.12-5.14.10 - Use-After-Free in Netfilter nf_tables
CVSS 7.8
CVE-2021-47391
HIGH
Linux Kernel - Use-After-Free in RDMA/cma Address Resolution
CVSS 7.8
CVE-2021-47388
HIGH
Linux kernel 4.4.271-4.4.285 - Use-After-Free in mac80211 CCMP/GCMP RX
CVSS 7.8
CVE-2021-47379
HIGH
Linux Kernel < 5.4.150 - Use-After-Free in blk-cgroup Policy Destruction
CVSS 7.8
CVE-2021-47378
CRITICAL
Linux Kernel - Use-After-Free in NVMe-RDMA Connection Error Handling
CVSS 9.8
CVE-2021-47375
MEDIUM
Linux Kernel 2.6.30-4.4.285 - Use-After-Free in blktrace via Concurrent Trace Removal and Access
CVSS 6.2
CVE-2021-47372
HIGH
Linux Kernel < 4.14.249 - Use-After-Free in macb_remove
CVSS 7.8
CVE-2021-47361
HIGH
Linux Kernel 4.7-4.9.285 - Use-After-Free in MCB Bus Allocation
CVSS 7.8
CVE-2021-47358
HIGH
Linux Kernel 4.9-4.9.285 - Use-After-Free in Greybus UART TTY Driver
CVSS 7.8
CVE-2021-47357
HIGH
Linux Kernel < 4.4.276 - Use-After-Free in ATM iphase Module Timer Handler
CVSS 7.8
CVE-2021-47356
HIGH
Linux Kernel < 4.4.276 - Use-After-Free in HFC_cleanup Timer Handler
CVSS 7.7
CVE-2021-47355
HIGH
Linux Kernel < 4.4.276 - Use-After-Free in nicstar_cleanup()
CVSS 7.8
CVE-2021-47342
HIGH
Linux Kernel < 5.10.77 - Use-After-Free in ext4 MMP Thread Handling
CVSS 7.8
CVE-2021-47341
HIGH
Linux Kernel - Use-After-Free in KVM Coalesced MMIO Unregister
CVSS 7.8
CVE-2021-47338
HIGH
Linux Kernel 5.3 - Use-After-Free in fb_delete_videomode
CVSS 7.8
CVE-2021-47335
MEDIUM
Linux kernel - Use-After-Free in F2FS Recovery via fsync_entry_slab Race Condition
CVSS 5.5
CVE-2021-47334
HIGH
Linux Kernel < 4.4.276 - Use-After-Free in ibmasm_init_one Error Handling
CVSS 7.8
CVE-2021-47328
HIGH
Linux Kernel < 4.19.198 - Use-After-Free in iSCSI Connection Teardown
CVSS 7.8
CVE-2021-47324
HIGH
Linux Kernel < 4.4.276 - Use-After-Free in Watchdog Timer Handler
CVSS 8.8
CVE-2021-47323
HIGH
Linux Kernel < 4.4.276 - Use-After-Free in sc520_wdt Timer Handler
CVSS 8.8
CVE-2021-47321
HIGH
Linux Kernel < 4.4.276 - Use-After-Free in Watchdog Timer Handler
CVSS 7.8
Details
Vulnerabilities
7,647
Exploit Likelihood
High