CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-53054 – cgroup/bpf: use a dedicated workqueue for cgroup bpf destruction
https://notcve.org/view.php?id=CVE-2024-53054
In the Linux kernel, the following vulnerability has been resolved: cgroup/bpf: use a dedicated workqueue for cgroup bpf destruction A hung_task problem shown below was found: INFO: task kworker/0:0:8 blocked for more than 327 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Workqueue: events cgroup_bpf_release Call Trace: <TASK> __schedule+0x5a2/0x2050 ? find_held_lock+0x33/0x100 ? wq_worker_sleeping+0x9e/0xe0 schedule+0x9f/0x180 schedule_preempt_disabled+0x25/0x50 __mutex_lock+0x512/0x740 ? cgroup_bpf_release+0x1e/0x4d0 ? cgroup_bpf_release+0xcf/0x4d0 ? • https://git.kernel.org/stable/c/4bfc0bb2c60e2f4cc8eb60f03cf8dfa72336272a https://git.kernel.org/stable/c/71f14a9f5c7db72fdbc56e667d4ed42a1a760494 https://git.kernel.org/stable/c/0d86cd70fc6a7ba18becb52ad8334d5ad3eca530 https://git.kernel.org/stable/c/6dab3331523ba73db1345d19e6f586dcd5f6efb4 https://git.kernel.org/stable/c/117932eea99b729ee5d12783601a4f7f5fd58a23 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-53052 – io_uring/rw: fix missing NOWAIT check for O_DIRECT start write
https://notcve.org/view.php?id=CVE-2024-53052
In the Linux kernel, the following vulnerability has been resolved: io_uring/rw: fix missing NOWAIT check for O_DIRECT start write When io_uring starts a write, it'll call kiocb_start_write() to bump the super block rwsem, preventing any freezes from happening while that write is in-flight. The freeze side will grab that rwsem for writing, excluding any new writers from happening and waiting for existing writes to finish. But io_uring unconditionally uses kiocb_start_write(), which will block if someone is currently attempting to freeze the mount point. This causes a deadlock where freeze is waiting for previous writes to complete, but the previous writes cannot complete, as the task that is supposed to complete them is blocked waiting on starting a new write. This results in the following stuck trace showing that dependency with the write blocked starting a new write: task:fio state:D stack:0 pid:886 tgid:886 ppid:876 Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_rwsem_wait+0x1e8/0x3f8 __percpu_down_read+0xe8/0x500 io_write+0xbb8/0xff8 io_issue_sqe+0x10c/0x1020 io_submit_sqes+0x614/0x2110 __arm64_sys_io_uring_enter+0x524/0x1038 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170 INFO: task fsfreeze:7364 blocked for more than 15 seconds. Not tainted 6.12.0-rc5-00063-g76aaf945701c #7963 with the attempting freezer stuck trying to grab the rwsem: task:fsfreeze state:D stack:0 pid:7364 tgid:7364 ppid:995 Call trace: __switch_to+0x1d8/0x348 __schedule+0x8e8/0x2248 schedule+0x110/0x3f0 percpu_down_write+0x2b0/0x680 freeze_super+0x248/0x8a8 do_vfs_ioctl+0x149c/0x1b18 __arm64_sys_ioctl+0xd0/0x1a0 invoke_syscall+0x74/0x268 el0_svc_common.constprop.0+0x160/0x238 do_el0_svc+0x44/0x60 el0_svc+0x44/0xb0 el0t_64_sync_handler+0x118/0x128 el0t_64_sync+0x168/0x170 Fix this by having the io_uring side honor IOCB_NOWAIT, and only attempt a blocking grab of the super block rwsem if it isn't set. For normal issue where IOCB_NOWAIT would always be set, this returns -EAGAIN which will have io_uring core issue a blocking attempt of the write. That will in turn also get completions run, ensuring forward progress. Since freezing requires CAP_SYS_ADMIN in the first place, this isn't something that can be triggered by a regular user. • https://git.kernel.org/stable/c/485d9232112b17f389b29497ff41b97b3189546b https://git.kernel.org/stable/c/4e24041ba86d50aaa4c792ae2c88ed01b3d96243 https://git.kernel.org/stable/c/9e8debb8e51354b201db494689198078ec2c1e75 https://git.kernel.org/stable/c/003d2996964c03dfd34860500428f4cdf1f5879e https://git.kernel.org/stable/c/26b8c48f369b7591f5679e0b90612f4862a32929 https://git.kernel.org/stable/c/1d60d74e852647255bd8e76f5a22dc42531e4389 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-53051 – drm/i915/hdcp: Add encoder check in intel_hdcp_get_capability
https://notcve.org/view.php?id=CVE-2024-53051
In the Linux kernel, the following vulnerability has been resolved: drm/i915/hdcp: Add encoder check in intel_hdcp_get_capability Sometimes during hotplug scenario or suspend/resume scenario encoder is not always initialized when intel_hdcp_get_capability add a check to avoid kernel null pointer dereference. • https://git.kernel.org/stable/c/4912e8fb3c37fb2dedf48d9c18bbbecd70e720f8 https://git.kernel.org/stable/c/31b42af516afa1e184d1a9f9dd4096c54044269a •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-53050 – drm/i915/hdcp: Add encoder check in hdcp2_get_capability
https://notcve.org/view.php?id=CVE-2024-53050
In the Linux kernel, the following vulnerability has been resolved: drm/i915/hdcp: Add encoder check in hdcp2_get_capability Add encoder check in intel_hdcp2_get_capability to avoid null pointer error. • https://git.kernel.org/stable/c/5b89dcf23575eb5bb95ce8d672cbc2232c2eb096 https://git.kernel.org/stable/c/d34f4f058edf1235c103ca9c921dc54820d14d40 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-53043 – mctp i2c: handle NULL header address
https://notcve.org/view.php?id=CVE-2024-53043
In the Linux kernel, the following vulnerability has been resolved: mctp i2c: handle NULL header address daddr can be NULL if there is no neighbour table entry present, in that case the tx packet should be dropped. saddr will usually be set by MCTP core, but check for NULL in case a packet is transmitted by a different protocol. • https://git.kernel.org/stable/c/f5b8abf9fc3dacd7529d363e26fe8230935d65f8 https://git.kernel.org/stable/c/4707893315802a0917231b94cb20cbe50ccbfe03 https://git.kernel.org/stable/c/8e886e44397ba89f6e8da8471386112b4f5b67b7 https://git.kernel.org/stable/c/8c222adadc1612e4f097688875962a28e3f5ab44 https://git.kernel.org/stable/c/01e215975fd80af81b5b79f009d49ddd35976c13 •