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High 7.8
bpf: track changes_pkt_data property for global functions
In the Linux kernel, the following vulnerability has been resolved: bpf: track changes_pkt_data property for global functions When processing calls to certain helpers, verifier invalidates all packet pointers in a current state. For example, consider the foll…
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High 8.6
vmxnet3: Fix malformed packet sizing in vmxnet3_process_xdp
In the Linux kernel, the following vulnerability has been resolved: vmxnet3: Fix malformed packet sizing in vmxnet3_process_xdp vmxnet3 driver's XDP handling is buggy for packet sizes using ring0 (that is, packet sizes between 128 - 3k bytes). We noticed MTU-…
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High 7.5
scsi: target: Fix WRITE_SAME No Data Buffer crash
In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using …
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High 7.8
net: caif: Fix use-after-free in cfusbl_device_notify()
In the Linux kernel, the following vulnerability has been resolved: net: caif: Fix use-after-free in cfusbl_device_notify() syzbot reported use-after-free in cfusbl_device_notify() [1]. This causes a stack trace like below: BUG: KASAN: use-after-free in cfusb…
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High 7.8
loop: Fix use-after-free issues
In the Linux kernel, the following vulnerability has been resolved: loop: Fix use-after-free issues do_req_filebacked() calls blk_mq_complete_request() synchronously or asynchronously when using asynchronous I/O unless memory allocation fails. Hence, modify l…
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High 7.5
net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler() When performing a stress test on SMC-R by rmmod mlx5_ib driver during the wrk/nginx test, we found that there is a probability of trigger…
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High 7.8
ice: xsk: disable txq irq before flushing hw
In the Linux kernel, the following vulnerability has been resolved: ice: xsk: disable txq irq before flushing hw ice_qp_dis() intends to stop a given queue pair that is a target of xsk pool attach/detach. One of the steps is to disable interrupts on these que…
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High 7.8
ext4: fix WARNING in ext4_update_inline_data
In the Linux kernel, the following vulnerability has been resolved: ext4: fix WARNING in ext4_update_inline_data Syzbot found the following issue: EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. fscr…
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High 7.8
tty: serial: fsl_lpuart: fix race on RX DMA shutdown
In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsl_lpuart: fix race on RX DMA shutdown From time to time DMA completion can come in the middle of DMA shutdown: <process ctx>: <IRQ>: lpuart32_shutdown() lpuart_dma_shutdown() d…
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High 7.8
drm/amdkfd: Fix an illegal memory access
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix an illegal memory access In the kfd_wait_on_events() function, the kfd_event_waiter structure is allocated by alloc_event_waiters(), but the event field of the waiter structur…
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High 7.8
drm/i915/active: Fix misuse of non-idle barriers as fence trackers
In the Linux kernel, the following vulnerability has been resolved: drm/i915/active: Fix misuse of non-idle barriers as fence trackers Users reported oopses on list corruptions when using i915 perf with a number of concurrently running graphics applications. …
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High 7.8
drm/shmem-helper: Remove another errant put in error path
In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Remove another errant put in error path drm_gem_shmem_mmap() doesn't own reference in error code path, resulting in the dma-buf shmem GEM object getting prematurely freed le…
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High 7.8
xsk: Add missing overflow check in xdp_umem_reg
In the Linux kernel, the following vulnerability has been resolved: xsk: Add missing overflow check in xdp_umem_reg The number of chunks can overflow u32. Make sure to return -EINVAL on overflow. Also remove a redundant u32 cast assigning umem->npgs.
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High 7.8
mptcp: use the workqueue to destroy unaccepted sockets
In the Linux kernel, the following vulnerability has been resolved: mptcp: use the workqueue to destroy unaccepted sockets Christoph reported a UaF at token lookup time after having refactored the passive socket initialization part: BUG: KASAN: use-after-free…
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High 7.8
perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output
In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output syzkaller reportes a KASAN issue with stack-out-of-bounds. The call trace is as follows: dump_stack+…
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High 7.8
cifs: fix use-after-free bug in refresh_cache_worker()
In the Linux kernel, the following vulnerability has been resolved: cifs: fix use-after-free bug in refresh_cache_worker() The UAF bug occurred because we were putting DFS root sessions in cifs_umount() while DFS cache refresher was being executed. Make DFS r…
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High 7.8
tee: amdtee: fix race condition in amdtee_open_session
In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix race condition in amdtee_open_session There is a potential race condition in amdtee_open_session that may lead to use-after-free. For instance, in amdtee_open_session() after…
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High 7.8
HID: intel-ish-hid: ipc: Fix potential use-after-free in work function
In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: ipc: Fix potential use-after-free in work function When a reset notify IPC message is received, the ISR schedules a work function and passes the ISHTP device to it via a g…
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High 7.8
codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()
In the Linux kernel, the following vulnerability has been resolved: codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() After making all ->qlen_notify() callbacks idempotent, now it is safe to remove the check of qlen!=0 from both fq_codel_dequ…
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High 7.8
net_sched: hfsc: Fix a UAF vulnerability in class handling
In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a UAF vulnerability in class handling This patch fixes a Use-After-Free vulnerability in the HFSC qdisc class handling. The issue occurs due to a time-of-check/time-of-us…
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High 8.8
IB/hfi1: Correctly move list in sc_disable()
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Correctly move list in sc_disable() Commit 13bac861952a ("IB/hfi1: Fix abba locking issue with sc_disable()") incorrectly tries to move a list from one list head to another. The resu…
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High 7.5
SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed There is a null-ptr-deref when xps sysfs alloc failed: BUG: KASAN: null-ptr-deref in sysfs_do_create_link_sd+0x40/0xd0 Read of size 8 at…
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High 7.8
net: sched: Fix use after free in red_enqueue()
In the Linux kernel, the following vulnerability has been resolved: net: sched: Fix use after free in red_enqueue() We can't use "skb" again after passing it to qdisc_enqueue(). This is basically identical to commit 2f09707d0c97 ("sch_sfb: Also store skb len …
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High 7.8
netfilter: nf_tables: netlink notifier might race to release objects
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: netlink notifier might race to release objects commit release path is invoked via call_rcu and it runs lockless to release the objects after rcu grace period. The netlin…
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High 7.8
netfilter: nf_tables: release flow rule object from commit path
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release flow rule object from commit path No need to postpone this to the commit release path, since no packets are walking over this object, this is accessed from contr…
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High 8.8
Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu Fix the race condition between the following two flows that run in parallel: 1. l2cap_reassemble_sdu -> chan->ops->recv (l2…
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High 7.8
net/smc: Fix possible leaked pernet namespace in smc_init()
In the Linux kernel, the following vulnerability has been resolved: net/smc: Fix possible leaked pernet namespace in smc_init() In smc_init(), register_pernet_subsys(&smc_net_stat_ops) is called without any error handling. If it fails, registering of &smc_net…
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High 7.8
fscrypt: stop using keyrings subsystem for fscrypt_master_key
In the Linux kernel, the following vulnerability has been resolved: fscrypt: stop using keyrings subsystem for fscrypt_master_key The approach of fs/crypto/ internally managing the fscrypt_master_key structs as the payloads of "struct key" objects contained i…
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High 7.8
btrfs: fix tree mod log mishandling of reallocated nodes
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix tree mod log mishandling of reallocated nodes We have been seeing the following panic in production kernel BUG at fs/btrfs/tree-mod-log.c:677! invalid opcode: 0000 [#1] SMP RIP: 00…
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High 7.8
ftrace: Fix use-after-free for dynamic ftrace_ops
In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix use-after-free for dynamic ftrace_ops KASAN reported a use-after-free with ftrace ops [1]. It was found from vmcore that perf had registered two ops with the same content successi…
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High 7.5
net: gso: fix panic on frag_list with mixed head alloc types
In the Linux kernel, the following vulnerability has been resolved: net: gso: fix panic on frag_list with mixed head alloc types Since commit 3dcbdb134f32 ("net: gso: Fix skb_segment splat when splitting gso_size mangled skb having linear-headed frag_list"), …
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High 7.8
octeontx2-pf: Fix SQE threshold checking
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: Fix SQE threshold checking Current way of checking available SQE count which is based on HW updated SQB count could result in driver submitting an SQE even before CQE for the pr…
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High 7.8
udf: Fix a slab-out-of-bounds write bug in udf_find_entry()
In the Linux kernel, the following vulnerability has been resolved: udf: Fix a slab-out-of-bounds write bug in udf_find_entry() Syzbot reported a slab-out-of-bounds Write bug: loop0: detected capacity change from 0 to 2048 ====================================…
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High 7.8
ASoC: core: Fix use-after-free in snd_soc_exit()
In the Linux kernel, the following vulnerability has been resolved: ASoC: core: Fix use-after-free in snd_soc_exit() KASAN reports a use-after-free: BUG: KASAN: use-after-free in device_del+0xb5b/0xc60 Read of size 8 at addr ffff888008655050 by task rmmod/387…
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High 7.8
bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb()
In the Linux kernel, the following vulnerability has been resolved: bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb() We got a syzkaller problem because of aarch64 alignment fault if KFENCE enabled. When the size from user bpf program is an odd …
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High 7.8
nilfs2: fix use-after-free bug of ns_writer on remount
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of ns_writer on remount If a nilfs2 filesystem is downgraded to read-only due to metadata corruption on disk and is remounted read/write, or if emergency read-o…
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High 7.8
ata: libata-transport: fix double ata_host_put() in ata_tport_add()
In the Linux kernel, the following vulnerability has been resolved: ata: libata-transport: fix double ata_host_put() in ata_tport_add() In the error path in ata_tport_add(), when calling put_device(), ata_tport_release() is called, it will put the refcount of…
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High 7.8
kcm: close race conditions on sk_receive_queue
In the Linux kernel, the following vulnerability has been resolved: kcm: close race conditions on sk_receive_queue sk->sk_receive_queue is protected by skb queue lock, but for KCM sockets its RX path takes mux->rx_lock to protect more than just skb queue. How…
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High 7.3
iio: adc: mp2629: fix potential array out of bound access
In the Linux kernel, the following vulnerability has been resolved: iio: adc: mp2629: fix potential array out of bound access Add sentinel at end of maps to avoid potential array out of bound access in iio core.
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High 7.0
scsi: zfcp: Fix double free of FSF request when qdio send fails
In the Linux kernel, the following vulnerability has been resolved: scsi: zfcp: Fix double free of FSF request when qdio send fails We used to use the wrong type of integer in 'zfcp_fsf_req_send()' to cache the FSF request ID when sending a new FSF request. T…