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CVSS: 7.1EPSS: 0%CPEs: 2EXPL: 0

29 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: xfs: don't walk off the end of a directory data block This adds sanity checks for xfs_dir2_data_unused and xfs_dir2_data_entry to make sure don't stray beyond valid memory region. Before patching, the loop simply checks that the start offset of the dup and dep is within the range. So in a crafted image, if last entry is xfs_dir2_data_unused, we can change dup->length to dup->length-1 and leave 1 byte of space. In the next traversal, this sp... • https://git.kernel.org/stable/c/ca96d83c93071f95cf962ce92406621a472df31b • CWE-125: Out-of-bounds Read •

CVSS: 7.1EPSS: 0%CPEs: 8EXPL: 0

29 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: tun: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tun_xdp_one() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tun_xdp_one-->eth_type_trans() may access the Ethernet header although it can be less than ETH_HLEN. Once transmitted, this could either cause out-of-bound access beyond the actual length, or confuse t... • https://git.kernel.org/stable/c/043d222f93ab8c76b56a3b315cd8692e35affb6c • CWE-20: Improper Input Validation •

CVSS: 7.1EPSS: 0%CPEs: 8EXPL: 0

29 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tap_get_user_xdp() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tap_get_user_xdp()-->skb_set_network_header() may assume the size is more than ETH_HLEN. Once transmitted, this could either cause out-of-bound access beyond the actual length, or confuse the unde... • https://git.kernel.org/stable/c/0efac27791ee068075d80f07c55a229b1335ce12 • CWE-20: Improper Input Validation •

CVSS: 6.3EPSS: 0%CPEs: 8EXPL: 0

23 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: filelock: Remove locks reliably when fcntl/close race is detected When fcntl_setlk() races with close(), it removes the created lock with do_lock_file_wait(). However, LSMs can allow the first do_lock_file_wait() that created the lock while denying the second do_lock_file_wait() that tries to remove the lock. Separately, posix_lock_file() could also fail to remove a lock due to GFP_KERNEL allocation failure (when splitting a range in the mi... • https://git.kernel.org/stable/c/c293621bbf678a3d85e3ed721c3921c8a670610d •

CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 0

18 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: don't allow mapping the MMIO HDP page with large pages We don't get the right offset in that case. The GPU has an unused 4K area of the register BAR space into which you can remap registers. We remap the HDP flush registers into this space to allow userspace (CPU or GPU) to flush the HDP when it updates VRAM. However, on systems with >4K pages, we end up exposing PAGE_SIZE of MMIO space. En el kernel de Linux, se ha resuelto la ... • https://git.kernel.org/stable/c/d8e408a82704c86ba87c3d58cfe69dcdb758aa07 •

CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0

17 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: bpf: Fix too early release of tcx_entry Pedro Pinto and later independently also Hyunwoo Kim and Wongi Lee reported an issue that the tcx_entry can be released too early leading to a use after free (UAF) when an active old-style ingress or clsact qdisc with a shared tc block is later replaced by another ingress or clsact instance. Essentially, the sequence to trigger the UAF (one example) can be as follows: 1. A network namespace is created... • https://git.kernel.org/stable/c/e420bed025071a623d2720a92bc2245c84757ecb • CWE-416: Use After Free •

CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0

17 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: bpf: Fix overrunning reservations in ringbuf The BPF ring buffer internally is implemented as a power-of-2 sized circular buffer, with two logical and ever-increasing counters: consumer_pos is the consumer counter to show which logical position the consumer consumed the data, and producer_pos which is the producer counter denoting the amount of data reserved by all producers. Each time a record is reserved, the producer that "owns" the reco... • https://git.kernel.org/stable/c/457f44363a8894135c85b7a9afd2bd8196db24ab • CWE-121: Stack-based Buffer Overflow CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 4.4EPSS: 0%CPEs: 1EXPL: 0

16 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: change vm->task_info handling This patch changes the handling and lifecycle of vm->task_info object. The major changes are: - vm->task_info is a dynamically allocated ptr now, and its uasge is reference counted. - introducing two new helper funcs for task_info lifecycle management - amdgpu_vm_get_task_info: reference counts up task_info before returning this info - amdgpu_vm_put_task_info: reference counts down task_info - last ... • https://git.kernel.org/stable/c/b8f67b9ddf4f8fe6dd536590712b5912ad78f99c • CWE-99: Improper Control of Resource Identifiers ('Resource Injection') •

CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0

15 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: tcp: avoid too many retransmit packets If a TCP socket is using TCP_USER_TIMEOUT, and the other peer retracted its window to zero, tcp_retransmit_timer() can retransmit a packet every two jiffies (2 ms for HZ=1000), for about 4 minutes after TCP_USER_TIMEOUT has 'expired'. The fix is to make sure tcp_rtx_probe0_timed_out() takes icsk->icsk_user_timeout into account. Before blamed commit, the socket would not timeout after icsk->icsk_user_ti... • https://git.kernel.org/stable/c/b701a99e431db784714c32fc6b68123045714679 • CWE-99: Improper Control of Resource Identifiers ('Resource Injection') •

CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0

12 Jul 2024 — In the Linux kernel, the following vulnerability has been resolved: netrom: Fix a memory leak in nr_heartbeat_expiry() syzbot reported a memory leak in nr_create() [0]. Commit 409db27e3a2e ("netrom: Fix use-after-free of a listening socket.") added sock_hold() to the nr_heartbeat_expiry() function, where a) a socket has a SOCK_DESTROY flag or b) a listening socket has a SOCK_DEAD flag. But in the case "a," when the SOCK_DESTROY flag is set, the file descriptor has already been closed and the nr_release() fu... • https://git.kernel.org/stable/c/a31caf5779ace8fa98b0d454133808e082ee7a1b •