kernel: net/sched: fix netdevice reference leaks in attach_default_qdiscs()

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix netdevice reference leaks in attachdefaultqdiscs In attachdefaultqdiscs, if a dev has multiple queues and queue 0 fails to attach qdisc because there is no memory in attachonedefaultqdisc. Then dev-qdisc will be...

kernel: drm/amd/display: clear optc underflow before turn off odm clock

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: clear optc underflow before turn off odm clock Why After ODM clock off, optc underflow bit will be kept there always and clear not work. We need to clear that before clock off. How Clear that if have when clock o...

kernel: wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix double listadd at iwlmvmmacwaketxqueue After successfull station association, if station queues are disabled for some reason, the related lists are not emptied. So if some new element is added to the list ...

kernel: scsi: qla2xxx: Fix crash when I/O abort times out

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix crash when I/O abort times out While performing CPU hotplug, a crash with the following stack was seen: Call Trace: qla24xxprocessresponsequeue+0x42a/0x970 qla2xxx qla2x00startnvmemq+0x3a2/0x4b0 qla2xxx...

kernel: mm/slub: actually fix freelist pointer vs redzoning

In the Linux kernel, the following vulnerability has been resolved: mm/slub: actually fix freelist pointer vs redzoning It turns out that SLUB redzoning "slubdebug=Z" checks from s-objectsize rather than from s-inuse which is normally bumped to make room for the freelist pointer, so a cache creat...

kernel: hwmon: (coretemp) Check for null before removing sysfs attrs

In the Linux kernel, the following vulnerability has been resolved: hwmon: coretemp Check for null before removing sysfs attrs If coretempaddcore gets an error then pdata-coredataindx is already NULL and has been kfreed. Don't pass that to sysfsremovegroup as that will crash in sysfsremovegroup...

kernel: ice: xsk: prohibit usage of non-balanced queue id

In the Linux kernel, the following vulnerability has been resolved: ice: xsk: prohibit usage of non-balanced queue id Fix the following scenario: 1. ethtool -L $IFACE rx 8 tx 96 2. xdpsock -q 10 -t -z Above refers to a case where user would like to attach XSK socket in txonly mode at a queue id...

kernel: tcp: Fix data-races around sysctl_tcp_mtu_probing.

In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpmtuprobing. While reading sysctltcpmtuprobing, it can be changed concurrently. Thus, we need to add READONCE to its readers...

kernel: bpf: Fix potential array overflow in bpf_trampoline_get_progs()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpftrampolinegetprogs The cnt value in the 'cnt = BPFMAXTRAMPPROGS' check does not include BPFTRAMPMODIFYRETURN bpf programs, so the number of the attached BPFTRAMPMODIFYRETURN bpf programs in...

kernel: perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map()

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in snruncoremmiomap pcigetdevice will increase the reference count for the returned pcidev, so snruncoregetmcdev will return a pcidev with its reference count increased. We need to...

kernel: scsi: sg: Allow waiting for commands to complete on removed device

In the Linux kernel, the following vulnerability has been resolved: scsi: sg: Allow waiting for commands to complete on removed device When a SCSI device is removed while in active use, currently sg will immediately return -ENODEV on any attempt to wait for active commands that were sent before t...

kernel: net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change()

A flaw was found in the sunrpc module in the Linux kernel. A missing decrement of the reference count when an error occurs can cause a memory leak, and a missing check can cause a NULL pointer dereference, potentially resulting in a denial of service...

kernel: net/sched: sch_taprio: fix possible use-after-free

In the Linux kernel, the following vulnerability has been resolved: net/sched: schtaprio: fix possible use-after-free syzbot reported a nasty crash 1 in nettxaction which made little sense until we got a repro. This repro installs a taprio qdisc, but providing an invalid TCARATE attribute...

kernel: blk-mq: fix null pointer dereference in blk_mq_clear_rq_mapping()

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix null pointer dereference in blkmqclearrqmapping Our syzkaller report a null pointer dereference, root cause is following: blkmqallocmapandrqs set-tagshctxidx = blkmqallocmapandrqs blkmqallocmapandrqs blkmqallocrqs //...

kernel: powerpc/64s: Don't use DSISR for SLB faults

In the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Don't use DSISR for SLB faults Since commit 46ddcb3950a2 "powerpc/mm: Show if a bad page fault on data is read or write." we use pagefaultiswriteregs-dsisr in badpagefault to determine if the fault is for a read or...

kernel: ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh.

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix a data-race around sysctlfibmultipathuseneigh. While reading sysctlfibmultipathuseneigh, it can be changed concurrently. Thus, we need to add READONCE to its reader...

kernel: net: fix refcount bug in sk_psock_get (2)

In the Linux kernel, the following vulnerability has been resolved: net: fix refcount bug in skpsockget 2 Syzkaller reports refcount bug as follows: ------------ cut here ------------ refcountt: saturated; leaking memory. WARNING: CPU: 1 PID: 3605 at lib/refcount.c:19...

PT-2025-40694

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the drm/i915 subsystem related to handling requests for GuC virtual engines. Specifically, references to i915 requests could be held indefinitely acro...

PT-2025-40750

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.3.0-rc1 Description The Linux kernel contained a flaw in the ring buffer implementation where an interrupt request IRQ work could run after the buffer it operated on was destroyed. This could lead to a...

PT-2025-49646

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to device mapper dm flakey functionality. A specific command involving dmsetup create flakey with a crafted table can cause a NULL pointer...