CVE-2021-3739High· 7.1▾ TwilightA NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.1 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Exploit-prediction probability, daily snapshots since Sep 1.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.6%
0.6% → 0.6%
A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.
linux_kernel >= 4.20, < 5.4.144linux_kernel >= 5.5, < 5.10.62linux_kernel >= 5.11, < 5.13.14linux_kernel >= 5.14, < 5.14.1fedora = 34h300s_firmwareh500s_firmwareh700s_firmwareh300e_firmwareh500e_firmwareh700e_firmwareh410s_firmwareh410c_firmwareUpgrade past the affected range:
linux_kernel 5.14.1Connected by shared product, vendor, weakness, or advisory.
CVE-2022-3104Medium· 5.5An issue was discovered in the Linux kernel through 5.16-rc6
CVE-2022-3115Medium· 5.5An issue was discovered in the Linux kernel through 5.16-rc6
CVE-2022-3621Medium· 4.3A vulnerability was found in Linux Kernel
CVE-2022-2153Medium· 5.5A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ
CVE-2022-1852Medium· 5.5A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86_emulate_insn in arch/x86/kvm/emulate.c
CVE-2021-44879Medium· 5.5In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference.