VYPR

CWE-416

Use After Free

VariantStableLikelihood: High

Description

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Hierarchy (View 1000)

Parents

Children

none

CVEs mapped to this weakness (8,192)

page 204 of 410
  • CVE-2021-47341HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: KVM: mmio: Fix use-after-free Read in kvm_vm_ioctl_unregister_coalesced_mmio BUG: KASAN: use-after-free in kvm_vm_ioctl_unregister_coalesced_mmio+0x7c/0x1ec arch/arm64/kvm/../../../virt/kvm/coalesced_mmio.c:183…

  • CVE-2021-47338HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: fbmem: Do not delete the mode that is still in use The execution of fb_delete_videomode() is not based on the result of the previous fbcon_mode_deleted(). As a result, the mode is directly deleted, regardless…

  • CVE-2021-47334HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: misc/libmasm/module: Fix two use after free in ibmasm_init_one In ibmasm_init_one, it calls ibmasm_init_remote_input_dev(). Inside ibmasm_init_remote_input_dev, mouse_dev and keybd_dev are allocated by…

  • CVE-2021-47321HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: watchdog: Fix possible use-after-free by calling del_timer_sync() This driver's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer…

  • CVE-2021-47318HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: arch_topology: Avoid use-after-free for scale_freq_data Currently topology_scale_freq_tick() (which gets called from scheduler_tick()) may end up using a pointer to "struct scale_freq_data", which was…

  • CVE-2021-47311HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: net: qcom/emac: fix UAF in emac_remove adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of…

  • CVE-2021-47310HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: net: ti: fix UAF in tlan_remove_one priv is netdev private data and it cannot be used after free_netdev() call. Using priv after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of…

  • CVE-2021-47306HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message. …

  • CVE-2021-47303HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: bpf: Track subprog poke descriptors correctly and fix use-after-free Subprograms are calling map_poke_track(), but on program release there is no hook to call map_poke_untrack(). However, on program release,…

  • CVE-2021-47302HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: igc: Fix use-after-free error during reset Cleans the next descriptor to watch (next_to_watch) when cleaning the TX ring. Failure to do so can cause invalid memory accesses. If igc_poll() runs while the…

  • CVE-2021-47301HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: igb: Fix use-after-free error during reset Cleans the next descriptor to watch (next_to_watch) when cleaning the TX ring. Failure to do so can cause invalid memory accesses. If igb_poll() runs while the…

  • CVE-2021-47281HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix race of snd_seq_timer_open() The timer instance per queue is exclusive, and snd_seq_timer_open() should have managed the concurrent accesses. It looks as if it's checking the already existing…

  • CVE-2021-47278HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: bus: mhi: pci_generic: Fix possible use-after-free in mhi_pci_remove() This driver's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the…

  • CVE-2021-47259HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.01

    In the Linux kernel, the following vulnerability has been resolved: NFS: Fix use-after-free in nfs4_init_client() KASAN reports a use-after-free when attempting to mount two different exports through two different NICs that belong to the same server. Olga was able to hit this…

  • CVE-2021-47254HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix use-after-free in gfs2_glock_shrink_scan The GLF_LRU flag is checked under lru_lock in gfs2_glock_remove_from_lru() to remove the glock from the lru list in __gfs2_glock_put(). On the shrink scan…

  • CVE-2021-47247HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix use-after-free of encap entry in neigh update handler Function mlx5e_rep_neigh_update() wasn't updated to accommodate rtnl lock removal from TC filter update path and properly handle concurrent…

  • CVE-2021-47239HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: net: usb: fix possible use-after-free in smsc75xx_bind The commit 46a8b29c6306 ("net: usb: fix memory leak in smsc75xx_bind") fails to clean up the work scheduled in smsc75xx_reset-> smsc75xx_set_multicast,…

  • CVE-2021-47235HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: net: ethernet: fix potential use-after-free in ec_bhf_remove static void ec_bhf_remove(struct pci_dev *dev) { ... struct ec_bhf_priv *priv = netdev_priv(net_dev); unregister_netdev(net_dev); …

  • CVE-2021-47224HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: net: ll_temac: Make sure to free skb when it is completely used With the skb pointer piggy-backed on the TX BD, we have a simple and efficient way to free the skb buffer when the frame has been transmitted.…

  • CVE-2021-47222HigMay 21, 2024
    risk 0.51cvss 7.8epss 0.00

    In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dst_clone() and directly sets the result which is wrong because the entry might have 0 refcnt or be already deleted, causing…