Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a panic that occurs when the ARM:9170/1 module enables kasan and kprobe...

CVE-2021-47612

In the Linux kernel, the following vulnerability has been resolved: nfc: fix segfault in nfcgenldumpdevicesdone When kmalloc in nfcgenldumpdevices fails then nfcgenldumpdevicesdone segfaults as below KASAN: null-ptr-deref in range 0x0000000000000008-0x000000000000000f CPU: 0 PID: 25 Comm:...

CVE-2021-47589

In the Linux kernel, the following vulnerability has been resolved: igbvf: fix double free in igbvfprobe In igbvfprobe, if registernetdev fails, the program will go to label errhwinit, and then to label errioremap. In freenetdev which is just below label errioremap, there is listforeachentrysafe...

DEBIAN-CVE-2021-47589

In the Linux kernel, the following vulnerability has been resolved: igbvf: fix double free in igbvfprobe In igbvfprobe, if registernetdev fails, the program will go to label errhwinit, and then to label errioremap. In freenetdev which is just below label errioremap, there is listforeachentrysafe...

DEBIAN-CVE-2021-47580

In the Linux kernel, the following vulnerability has been resolved: scsi: scsidebug: Fix type in mint to avoid stack OOB Change mint to use type "u32" instead of type "int" to avoid stack out of bounds. With mint type "int" the values get sign extended and the larger value gets used causing stack...

CVE-2021-47576

In the Linux kernel, the following vulnerability has been resolved: scsi: scsidebug: Sanity check block descriptor length in respmodeselect In respmodeselect sanity check the block descriptor len to avoid UAF. BUG: KASAN: use-after-free in respmodeselect+0xa4c/0xb40 drivers/scsi/scsidebug.c:2509...

CVE-2021-47589

In the Linux kernel, the following vulnerability has been resolved: igbvf: fix double free in igbvfprobe In igbvfprobe, if registernetdev fails, the program will go to label errhwinit, and then to label errioremap. In freenetdev which is just below label errioremap, there is listforeachentrysafe...

CVE-2021-47612

In the Linux kernel, the following vulnerability has been resolved: nfc: fix segfault in nfcgenldumpdevicesdone When kmalloc in nfcgenldumpdevices fails then nfcgenldumpdevicesdone segfaults as below KASAN: null-ptr-deref in range 0x0000000000000008-0x000000000000000f CPU: 0 PID: 25 Comm:...

CVE-2021-47580

In the Linux kernel, the following vulnerability has been resolved: scsi: scsidebug: Fix type in mint to avoid stack OOB Change mint to use type "u32" instead of type "int" to avoid stack out of bounds. With mint type "int" the values get sign extended and the larger value gets used causing stack...

UBUNTU-CVE-2021-47580

In the Linux kernel, the following vulnerability has been resolved: scsi: scsidebug: Fix type in mint to avoid stack OOB Change mint to use type "u32" instead of type "int" to avoid stack out of bounds. With mint type "int" the values get sign extended and the larger value gets used causing stack...

UBUNTU-CVE-2021-47593

In the Linux kernel, the following vulnerability has been resolved: mptcp: clear 'kern' flag from fallback sockets The mptcp ULP extension relies on sk-sksockkern being set correctly: It prevents setsockoptfd, IPPROTOTCP, TCPULP, "mptcp", 6; from working for plain tcp sockets any userspace-expose...

CVE-2021-47612 nfc: fix segfault in nfc_genl_dump_devices_done

In the Linux kernel, the following vulnerability has been resolved: nfc: fix segfault in nfcgenldumpdevicesdone When kmalloc in nfcgenldumpdevices fails then nfcgenldumpdevicesdone segfaults as below KASAN: null-ptr-deref in range 0x0000000000000008-0x000000000000000f CPU: 0 PID: 25 Comm:...

CVE-2021-47589

In CVE-2021-47589, the Linux kernel igbvf driver contains a double-free / use-after-free path in igbvf_probe. If register_netdev() fails, control flows to err_hw_init then err_ioremap, and free_netdev attempts to clean dev->napi_list entries while adapter->rx_ring (which holds napi) has alr...

CVE-2021-47586 net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwmac-rk: fix oob read in rkgmacsetup KASAN reports an out-of-bounds read in rkgmacsetup on the line: while ops-regsi This happens for most platforms since the regs flexible array member is empty, so the memory after...

CVE-2021-47586 net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwmac-rk: fix oob read in rkgmacsetup KASAN reports an out-of-bounds read in rkgmacsetup on the line: while ops-regsi This happens for most platforms since the regs flexible array member is empty, so the memory after...

CVE-2021-47580 scsi: scsi_debug: Fix type in min_t to avoid stack OOB

In the Linux kernel, the following vulnerability has been resolved: scsi: scsidebug: Fix type in mint to avoid stack OOB Change mint to use type "u32" instead of type "int" to avoid stack out of bounds. With mint type "int" the values get sign extended and the larger value gets used causing stack...

CVE-2021-47578 scsi: scsi_debug: Don't call kcalloc() if size arg is zero

In the Linux kernel, the following vulnerability has been resolved: scsi: scsidebug: Don't call kcalloc if size arg is zero If the size arg to kcalloc is zero, it returns ZEROSIZEPTR. Because of that, for a following NULL pointer check to work on the returned pointer, kcalloc must not be called...

CVE-2021-47576 scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select()

In the Linux kernel, the following vulnerability has been resolved: scsi: scsidebug: Sanity check block descriptor length in respmodeselect In respmodeselect sanity check the block descriptor len to avoid UAF. BUG: KASAN: use-after-free in respmodeselect+0xa4c/0xb40 drivers/scsi/scsidebug.c:2509...

CVE-2024-38588

In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix possible use-after-free issue in ftracelocation KASAN reports a bug: BUG: KASAN: use-after-free in ftracelocation+0x90/0x120 Read of size 8 at addr ffff888141d40010 by task insmod/424 CPU: 8 PID: 424 Comm: insmod...

AZL-49329 CVE-2024-38588 affecting package kernel for versions less than 5.15.162.2-1

In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix possible use-after-free issue in ftracelocation KASAN reports a bug: BUG: KASAN: use-after-free in ftracelocation+0x90/0x120 Read of size 8 at addr ffff888141d40010 by task insmod/424 CPU: 8 PID: 424 Comm: insmod...