8,107 results · Feed
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Medium 5.5
nilfs2: fix potential deadlock with newly created symlinks
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential deadlock with newly created symlinks Syzbot reported that page_symlink(), called by nilfs_symlink(), triggers memory reclamation involving the filesystem layer, which ca…
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Unscored —
ocfs2: pass u64 to ocfs2_truncate_inline maybe overflow
In the Linux kernel, the following vulnerability has been resolved: ocfs2: pass u64 to ocfs2_truncate_inline maybe overflow Syzbot reported a kernel BUG in ocfs2_truncate_inline. There are two reasons for this: first, the parameter value passed is greater tha…
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High 7.8
btrfs: fix use-after-free of block device file in __btrfs_free_extra_devids()
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix use-after-free of block device file in __btrfs_free_extra_devids() Mounting btrfs from two images (which have the same one fsid and two different dev_uuids) in certain executing or…
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High 7.8
udf: refactor inode_bmap() to handle error
In the Linux kernel, the following vulnerability has been resolved: udf: refactor inode_bmap() to handle error Refactor inode_bmap() to handle error since udf_next_aext() can return error now. On situations like ftruncate, udf_extend_file() can now detect err…
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Medium 5.5
ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()
In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size() The step variable is initialized to zero. It is changed in the loop, but if it's not changed it will remain zero. Add …
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Medium 5.5
nilfs2: propagate directory read errors from nilfs_find_entry()
In the Linux kernel, the following vulnerability has been resolved: nilfs2: propagate directory read errors from nilfs_find_entry() Syzbot reported that a task hang occurs in vcs_open() during a fuzzing test for nilfs2. The root cause of this problem is that …
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Unscored —
mm/swapfile: skip HugeTLB pages for unuse_vma
In the Linux kernel, the following vulnerability has been resolved: mm/swapfile: skip HugeTLB pages for unuse_vma I got a bad pud error and lost a 1GB HugeTLB when calling swapoff. The problem can be reproduced by the following steps: 1. Allocate an anonymous…
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Medium 5.5
pinctrl: ocelot: fix system hang on level based interrupts
In the Linux kernel, the following vulnerability has been resolved: pinctrl: ocelot: fix system hang on level based interrupts The current implementation only calls chained_irq_enter() and chained_irq_exit() if it detects pending interrupts. ``` for (i = 0; i…
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High 7.1
posix-clock: Fix missing timespec64 check in pc_clock_settime()
In the Linux kernel, the following vulnerability has been resolved: posix-clock: Fix missing timespec64 check in pc_clock_settime() As Andrew pointed out, it will make sense that the PTP core checked timespec64 struct's tv_sec and tv_nsec range before calling…
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Medium 5.5
arm64: probes: Fix uprobes for big-endian kernels
In the Linux kernel, the following vulnerability has been resolved: arm64: probes: Fix uprobes for big-endian kernels The arm64 uprobes code is broken for big-endian kernels as it doesn't convert the in-memory instruction encoding (which is always little-endi…
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High 7.8
drm/vc4: Stop the active perfmon before being destroyed
In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Stop the active perfmon before being destroyed Upon closing the file descriptor, the active performance monitor is not stopped. Although all perfmons are destroyed in `vc4_perfmon_cl…
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Medium 5.5
virtio_pmem: Check device status before requesting flush
In the Linux kernel, the following vulnerability has been resolved: virtio_pmem: Check device status before requesting flush If a pmem device is in a bad status, the driver side could wait for host ack forever in virtio_pmem_flush(), causing the system to han…
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High 7.8
fbdev: sisfb: Fix strbuf array overflow
In the Linux kernel, the following vulnerability has been resolved: fbdev: sisfb: Fix strbuf array overflow The values of the variables xres and yres are placed in strbuf. These variables are obtained from strbuf1. The strbuf1 array contains digit characters …
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Medium 5.5
ceph: remove the incorrect Fw reference check when dirtying pages
In the Linux kernel, the following vulnerability has been resolved: ceph: remove the incorrect Fw reference check when dirtying pages When doing the direct-io reads it will also try to mark pages dirty, but for the read path it won't hold the Fw caps and ther…
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Medium 5.5
net: systemport: fix potential memory leak in bcm_sysport_xmit()
In the Linux kernel, the following vulnerability has been resolved: net: systemport: fix potential memory leak in bcm_sysport_xmit() The bcm_sysport_xmit() returns NETDEV_TX_OK without freeing skb in case of dma_map_single() fails, add dev_kfree_skb() to fix …
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Medium 5.5
net/sun3_82586: fix potential memory leak in sun3_82586_send_packet()
In the Linux kernel, the following vulnerability has been resolved: net/sun3_82586: fix potential memory leak in sun3_82586_send_packet() The sun3_82586_send_packet() returns NETDEV_TX_OK without freeing skb in case of skb->len being too long, add dev_kfree_s…
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Medium 5.5
be2net: fix potential memory leak in be_xmit()
In the Linux kernel, the following vulnerability has been resolved: be2net: fix potential memory leak in be_xmit() The be_xmit() returns NETDEV_TX_OK without freeing skb in case of be_xmit_enqueue() fails, add dev_kfree_skb_any() to fix it.
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Medium 5.5
fsl/fman: Fix refcount handling of fman-related devices
In the Linux kernel, the following vulnerability has been resolved: fsl/fman: Fix refcount handling of fman-related devices In mac_probe() there are multiple calls to of_find_device_by_node(), fman_bind() and fman_port_bind() which takes references to of_dev-…
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Critical 9.8
tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().
In the Linux kernel, the following vulnerability has been resolved: tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink(). Martin KaFai Lau reported use-after-free [0] in reqsk_timer_handler(). """ We are seeing a use-after-free from a bpf prog attached…
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High 7.8
smb: client: fix OOBs when building SMB2_IOCTL request
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix OOBs when building SMB2_IOCTL request When using encryption, either enforced by the server or when using 'seal' mount option, the client will squash all compound request buff…
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High 7.8
usb: typec: altmode should keep reference to parent
In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmode should keep reference to parent The altmode device release refers to its parent device, but without keeping a reference to it. When registering the altmode, get a referenc…
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Medium 5.5
Bluetooth: bnep: fix wild-memory-access in proto_unregister
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bnep: fix wild-memory-access in proto_unregister There's issue as follows: KASAN: maybe wild-memory-access in range [0xdead...108-0xdead...10f] CPU: 3 UID: 0 PID: 2805 Comm: rmmod …
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High 7.8
udf: fix uninit-value use in udf_get_fileshortad
In the Linux kernel, the following vulnerability has been resolved: udf: fix uninit-value use in udf_get_fileshortad Check for overflow when computing alen in udf_current_aext to mitigate later uninit-value use in udf_get_fileshortad KMSAN bug[1]. After apply…
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Medium 5.5
xfrm: validate new SA's prefixlen using SA family when sel.family is unset
In the Linux kernel, the following vulnerability has been resolved: xfrm: validate new SA's prefixlen using SA family when sel.family is unset This expands the validation introduced in commit 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm se…
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Medium 4.7
nvme-pci: fix race condition between reset and nvme_dev_disable()
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix race condition between reset and nvme_dev_disable() nvme_dev_disable() modifies the dev->online_queues field, therefore nvme_pci_update_nr_queues() should avoid racing against i…
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Unscored —
drm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA
In the Linux kernel, the following vulnerability has been resolved: drm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA Replace the fake VLA at end of the vbva_mouse_pointer_shape shape with a real VLA to fix a "memcpy: detected f…
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High 7.3
tracing: Consider the NULL character when validating the event length
In the Linux kernel, the following vulnerability has been resolved: tracing: Consider the NULL character when validating the event length strlen() returns a string length excluding the null byte. If the string length equals to the maximum buffer length, the b…
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High 7.8
net: sched: fix use-after-free in taprio_change()
In the Linux kernel, the following vulnerability has been resolved: net: sched: fix use-after-free in taprio_change() In 'taprio_change()', 'admin' pointer may become dangling due to sched switch / removal caused by 'advance_sched()', and critical section pro…
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High 8.0
Bluetooth: SCO: Fix UAF on sco_sock_timeout
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix UAF on sco_sock_timeout conn->sk maybe have been unlinked/freed while waiting for sco_conn_lock so this checks if the conn->sk is still valid by checking if it part of sco…
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Medium 5.5
nilfs2: fix kernel bug due to missing clearing of buffer delay flag
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix kernel bug due to missing clearing of buffer delay flag Syzbot reported that after nilfs2 reads a corrupted file system image and degrades to read-only, the BUG_ON check for the b…
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High 7.3
drm/amd: Guard against bad data for ATIF ACPI method
In the Linux kernel, the following vulnerability has been resolved: drm/amd: Guard against bad data for ATIF ACPI method If a BIOS provides bad data in response to an ATIF method call this causes a NULL pointer dereference in the caller. ``` ? show_regs (arch…
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High 8.4
KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory
In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Ignore nCR3[4:0] when loading PDPTEs from memory Ignore nCR3[4:0] when loading PDPTEs from memory for nested SVM, as bits 4:0 of CR3 are ignored when PAE paging is used, and thus V…
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Critical 9.8
nfsd: fix race between laundromat and free_stateid
In the Linux kernel, the following vulnerability has been resolved: nfsd: fix race between laundromat and free_stateid There is a race between laundromat handling of revoked delegations and a client sending free_stateid operation. Laundromat thread finds that…
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High 7.3
arm64: probes: Remove broken LDR (literal) uprobe support
In the Linux kernel, the following vulnerability has been resolved: arm64: probes: Remove broken LDR (literal) uprobe support The simulate_ldr_literal() and simulate_ldrsw_literal() functions are unsafe to use for uprobes. Both functions were originally writt…
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High 7.5
RDMA/mad: Improve handling of timed out WRs of mad agent
In the Linux kernel, the following vulnerability has been resolved: RDMA/mad: Improve handling of timed out WRs of mad agent Current timeout handler of mad agent acquires/releases mad_agent_priv lock for every timed out WRs. This causes heavy locking contenti…
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High 7.3
nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error
In the Linux kernel, the following vulnerability has been resolved: nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error The `nouveau_dmem_copy_one` function ensures that the copy push command is sent to the device firmware but does not track whe…
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High 7.8
bpf: support non-r10 register spill/fill to/from stack in precision tracking
In the Linux kernel, the following vulnerability has been resolved: bpf: support non-r10 register spill/fill to/from stack in precision tracking Use instruction (jump) history to record instructions that performed register spill/fill to/from stack, regardless…
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High 7.8
blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race
In the Linux kernel, the following vulnerability has been resolved: blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race We're seeing crashes from rq_qos_wake_function that look like this: BUG: unable to handle page fault for address: ffffafe180…
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High 7.8
parport: Proper fix for array out-of-bounds access
In the Linux kernel, the following vulnerability has been resolved: parport: Proper fix for array out-of-bounds access The recent fix for array out-of-bounds accesses replaced sprintf() calls blindly with snprintf(). However, since snprintf() returns the woul…
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High 7.8
tty: n_gsm: Fix use-after-free in gsm_cleanup_mux
In the Linux kernel, the following vulnerability has been resolved: tty: n_gsm: Fix use-after-free in gsm_cleanup_mux BUG: KASAN: slab-use-after-free in gsm_cleanup_mux+0x77b/0x7b0 drivers/tty/n_gsm.c:3160 [n_gsm] Read of size 8 at addr ffff88815fe99c00 by ta…