kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption

A kernel stack flaw that corrupted the Linux kernel’s Mellanox Technologies Spectrum Ethernet driver was found when a user initialized more than 16 access control lists ACLs. This flaw allows a local user to crash or potentially escalate their privileges on the system...

CVE-2023-52700

In the Linux kernel, the following vulnerability has been resolved: tipc: fix kernel warning when sending SYN message When sending a SYN message, this kernel stack trace is observed: ... 13.396352 RIP: 0010:copyfromiter+0xb4/0x550 ... 13.398494 Call Trace: 13.398630 13.398630 ? allocskb+0xed/0x1a...

CVE-2023-52761 riscv: VMAP_STACK overflow detection thread-safe

In the Linux kernel, the following vulnerability has been resolved: riscv: VMAPSTACK overflow detection thread-safe commit 31da94c25aea "riscv: add VMAPSTACK overflow detection" added support for CONFIGVMAPSTACK. If overflow is detected, CPU switches to shadowstack temporarily before switching...

DEBIAN-CVE-2021-47255

In the Linux kernel, the following vulnerability has been resolved: kvm: LAPIC: Restore guard to prevent illegal APIC register access Per the SDM, "any access that touches bytes 4 through 15 of an APIC register may cause undefined behavior and must not be executed." Worse, such an access in...

UBUNTU-CVE-2021-47255

In the Linux kernel, the following vulnerability has been resolved: kvm: LAPIC: Restore guard to prevent illegal APIC register access Per the SDM, "any access that touches bytes 4 through 15 of an APIC register may cause undefined behavior and must not be executed." Worse, such an access in...

CVE-2021-47255

In the Linux kernel, the following vulnerability has been resolved: kvm: LAPIC: Restore guard to prevent illegal APIC register access Per the SDM, "any access that touches bytes 4 through 15 of an APIC register may cause undefined behavior and must not be executed." Worse, such an access in...

CVE-2021-47339 media: v4l2-core: explicitly clear ioctl input data

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-core: explicitly clear ioctl input data As seen from a recent syzbot bug report, mistakes in the compat ioctl implementation can lead to uninitialized kernel stack data getting used as input for driver ioctl handlers...

CVE-2021-47255 kvm: LAPIC: Restore guard to prevent illegal APIC register access

In the Linux kernel, the following vulnerability has been resolved: kvm: LAPIC: Restore guard to prevent illegal APIC register access Per the SDM, "any access that touches bytes 4 through 15 of an APIC register may cause undefined behavior and must not be executed." Worse, such an access in...

CVE-2021-47255 kvm: LAPIC: Restore guard to prevent illegal APIC register access

In the Linux kernel, the following vulnerability has been resolved: kvm: LAPIC: Restore guard to prevent illegal APIC register access Per the SDM, "any access that touches bytes 4 through 15 of an APIC register may cause undefined behavior and must not be executed." Worse, such an access in...

CVE-2021-47255

In CVE-2021-47255, the Linux kernel vulnerability affects KVM LAPIC: a read access path in kvm_lapic_reg_read could touch bytes 4–15 of an APIC register, risking leakage of kernel stack contents. The issue was resolved by restoring a guard removed in a prior commit and aligning with the SDM requi...

CVE-2024-35893

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: prevent kernel-infoleak syzbot found that tcfskbmoddump was copying four bytes from kernel stack to user space 1. The issue here is that 'struct tcskbmod' has a four bytes hole. We need to clear the structur...

kernel: mlxsw: spectrum_acl_tcam: Fix stack corruption

A kernel stack flaw that corrupted the Linux kernel’s Mellanox Technologies Spectrum Ethernet driver was found when a user initialized more than 16 access control lists ACLs. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed

In the Linux kernel, the following vulnerability has been resolved: rcu: Avoid stack overflow due to rcuirqenterchecktick being kprobe-ed Registering a kprobe on rcuirqenterchecktick can cause kernel stack overflow as shown below. This issue can be reproduced by enabling CONFIGNOHZFULL and bootin...

CVE-2022-48654

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix possible bogus match in nfosffind nfosffind incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nftosf which can be used to leak stale kernel stack data to userspa...

CVE-2022-48654

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix possible bogus match in nfosffind nfosffind incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nftosf which can be used to leak stale kernel stack data to userspa...

CVE-2022-48654 netfilter: nfnetlink_osf: fix possible bogus match in nf_osf_find()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinkosf: fix possible bogus match in nfosffind nfosffind incorrectly returns true on mismatch, this leads to copying uninitialized memory area in nftosf which can be used to leak stale kernel stack data to userspa...

CVE-2023-52606

A potential stack corruption flaw was found in arch/powerpc/lib/sstep.c in the Linux kernel. This may lead to compromised Confidentiality or Availability...

Stack overflow

In the Linux kernel, the following vulnerability has been resolved: powerpc/lib: Validate size for vector operations Some of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. The size of those operations however is determined separately in analyseinstr...

UBUNTU-CVE-2023-52606

In the Linux kernel, the following vulnerability has been resolved: powerpc/lib: Validate size for vector operations Some of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. The size of those operations however is determined separately in analyseinstr...

CVE-2023-52606 powerpc/lib: Validate size for vector operations

In the Linux kernel, the following vulnerability has been resolved: powerpc/lib: Validate size for vector operations Some of the fp/vmx code in sstep.c assume a certain maximum size for the instructions being emulated. The size of those operations however is determined separately in analyseinstr...