CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-53060 – drm/amdgpu: prevent NULL pointer dereference if ATIF is not supported
https://notcve.org/view.php?id=CVE-2024-53060
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: prevent NULL pointer dereference if ATIF is not supported acpi_evaluate_object() may return AE_NOT_FOUND (failure), which would result in dereferencing buffer.pointer (obj) while being NULL. Although this case may be unrealistic for the current code, it is still better to protect against possible bugs. Bail out also when status is AE_NOT_FOUND. This fixes 1 FORWARD_NULL issue reported by Coverity Report: CID 1600951: Null pointer dereferences (FORWARD_NULL) (cherry picked from commit 91c9e221fe2553edf2db71627d8453f083de87a1) • https://git.kernel.org/stable/c/ce8a00a00e36f61f5a1e47734332420b68784c43 https://git.kernel.org/stable/c/8d7a28eca7553d35d4ce192fa1f390f2357df41b https://git.kernel.org/stable/c/2ac7f253deada4d449559b65a1c1cd0a6f6f19b7 https://git.kernel.org/stable/c/27fc29b5376998c126c85cf9b15d9dfc2afc9cbe https://git.kernel.org/stable/c/1a9f55ed5b512f510ccd21ad527d532e60550e80 https://git.kernel.org/stable/c/a613a392417532ca5aaf3deac6e3277aa7aaef2b https://git.kernel.org/stable/c/b9d9881237afeb52eddd70077b7174bf17e2fa30 https://git.kernel.org/stable/c/a6dd15981c03f2cdc9a351a278f09b547 •
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: 8EXPL: 0CVE-2024-50299 – sctp: properly validate chunk size in sctp_sf_ootb()
https://notcve.org/view.php?id=CVE-2024-50299
In the Linux kernel, the following vulnerability has been resolved: sctp: properly validate chunk size in sctp_sf_ootb() A size validation fix similar to that in Commit 50619dbf8db7 ("sctp: add size validation when walking chunks") is also required in sctp_sf_ootb() to address a crash reported by syzbot: BUG: KMSAN: uninit-value in sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712 sctp_sf_ootb+0x7f5/0xce0 net/sctp/sm_statefuns.c:3712 sctp_do_sm+0x181/0x93d0 net/sctp/sm_sideeffect.c:1166 sctp_endpoint_bh_rcv+0xc38/0xf90 net/sctp/endpointola.c:407 sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88 sctp_rcv+0x3831/0x3b20 net/sctp/input.c:243 sctp4_rcv+0x42/0x50 net/sctp/protocol.c:1159 ip_protocol_deliver_rcu+0xb51/0x13d0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x336/0x500 net/ipv4/ip_input.c:233 • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 https://git.kernel.org/stable/c/67b9a278b80f71ec62091ded97c6bcbea33b5ec3 https://git.kernel.org/stable/c/9b5d42aeaf1a52f73b003a33da6deef7df34685f https://git.kernel.org/stable/c/40b283ba76665437bc2ac72079c51b57b25bff9e https://git.kernel.org/stable/c/a758aa6a773bb872196bcc3173171ef8996bddf0 https://git.kernel.org/stable/c/bf9bff13225baf5f658577f7d985fc4933d79527 https://git.kernel.org/stable/c/d3fb3cc83cf313e4f87063ce0f3fea76b071567b https://git.kernel.org/stable/c/8820d2d6589f62ee5514793fff9b50c9f •