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CVSS: 5.5EPSS: %CPEs: 5EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: dm-bufio: don't schedule in atomic context A BUG was reported as below when CONFIG_DEBUG_ATOMIC_SLEEP and try_verify_in_tasklet are enabled. [ 129.444685][ T934] BUG: sleeping function called from invalid context at drivers/md/dm-bufio.c:2421 [ 129.444723][ T934] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 934, name: kworker/1:4 [ 129.444740][ T934] preempt_count: 201, expected: 0 [ 129.444756][ T934] RCU nest depth: 0, expected:... • https://git.kernel.org/stable/c/7cd326747f46ffe1c7bff5682e97dfbcb98990ec •

CVSS: 7.8EPSS: %CPEs: 6EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid There is a string parsing logic error which can lead to an overflow of hid or uid buffers. Comparing ACPIID_LEN against a total string length doesn't take into account the lengths of individual hid and uid buffers so the check is insufficient in some cases. For example if the length of hid string is 4 and the length of the uid string is 260, the length of str will be equal to AC... • https://git.kernel.org/stable/c/ca3bf5d47cec8b7614bcb2e9132c40081d6d81db •

CVSS: 7.8EPSS: %CPEs: 3EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_session_rpc_open A UAF issue can occur due to a race condition between ksmbd_session_rpc_open() and __session_rpc_close(). Add rpc_lock to the session to protect it. In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_session_rpc_open A UAF issue can occur due to a race condition between ksmbd_session_rpc_open() and __session_rpc_close(). Add rpc_lock to t... • https://git.kernel.org/stable/c/8fb3b6c85b7e3127161623586b62abcc366caa20 •

CVSS: 7.8EPSS: %CPEs: 5EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in kerberos authentication Setting sess->user = NULL was introduced to fix the dangling pointer created by ksmbd_free_user. However, it is possible another thread could be operating on the session and make use of sess->user after it has been passed to ksmbd_free_user but before sess->user is set to NULL. In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in kerberos authen... • https://git.kernel.org/stable/c/e34a33d5d7e87399af0a138bb32f6a3e95dd83d2 •

CVSS: 7.8EPSS: %CPEs: 6EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: tracing: Fix oob write in trace_seq_to_buffer() syzbot reported this bug: ================================================================== BUG: KASAN: slab-out-of-bounds in trace_seq_to_buffer kernel/trace/trace.c:1830 [inline] BUG: KASAN: slab-out-of-bounds in tracing_splice_read_pipe+0x6be/0xdd0 kernel/trace/trace.c:6822 Write of size 4507 at addr ffff888032b6b000 by task syz.2.320/7260 CPU: 1 UID: 0 PID: 7260 Comm: syz.2.320 Not tainte... • https://git.kernel.org/stable/c/3c56819b14b00dd449bd776303e61f8532fad09f •

CVSS: 5.4EPSS: %CPEs: 5EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: xsk: Fix race condition in AF_XDP generic RX path Move rx_lock from xsk_socket to xsk_buff_pool. Fix synchronization for shared umem mode in generic RX path where multiple sockets share single xsk_buff_pool. RX queue is exclusive to xsk_socket, while FILL queue can be shared between multiple sockets. This could result in race condition where two CPU cores access RX path of two different sockets sharing the same umem. Protect both queues by ... • https://git.kernel.org/stable/c/bf0bdd1343efbbf65b4d53aef1fce14acbd79d50 •

CVSS: 7.8EPSS: %CPEs: 6EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: net_sched: drr: Fix double list add in class with netem as child qdisc As described in Gerrard's report [1], there are use cases where a netem child qdisc will make the parent qdisc's enqueue callback reentrant. In the case of drr, there won't be a UAF, but the code will add the same classifier to the list twice, which will cause memory corruption. In addition to checking for qlen being zero, this patch checks whether the class was already ... • https://git.kernel.org/stable/c/37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea •

CVSS: 7.8EPSS: %CPEs: 6EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: net_sched: ets: Fix double list add in class with netem as child qdisc As described in Gerrard's report [1], there are use cases where a netem child qdisc will make the parent qdisc's enqueue callback reentrant. In the case of ets, there won't be a UAF, but the code will add the same classifier to the list twice, which will cause memory corruption. In addition to checking for qlen being zero, this patch checks whether the class was already ... • https://git.kernel.org/stable/c/37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea •

CVSS: 7.8EPSS: %CPEs: 6EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: net_sched: qfq: Fix double list add in class with netem as child qdisc As described in Gerrard's report [1], there are use cases where a netem child qdisc will make the parent qdisc's enqueue callback reentrant. In the case of qfq, there won't be a UAF, but the code will add the same classifier to the list twice, which will cause memory corruption. This patch checks whether the class was already added to the agg->active list (cl_is_active) ... • https://git.kernel.org/stable/c/37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea •

CVSS: 9.0EPSS: %CPEs: 8EXPL: 0

20 May 2025 — In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix out-of-bound memcpy() during ethtool -w When retrieving the FW coredump using ethtool, it can sometimes cause memory corruption: BUG: KFENCE: memory corruption in __bnxt_get_coredump+0x3ef/0x670 [bnxt_en] Corrupted memory at 0x000000008f0f30e8 [ ! ! ! ! ! • https://git.kernel.org/stable/c/c74751f4c39232c31214ec6a3bc1c7e62f5c728b •