CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-46738 – VMCI: Fix use-after-free when removing resource in vmci_resource_remove()
https://notcve.org/view.php?id=CVE-2024-46738
In the Linux kernel, the following vulnerability has been resolved: VMCI: Fix use-after-free when removing resource in vmci_resource_remove() When removing a resource from vmci_resource_table in vmci_resource_remove(), the search is performed using the resource handle by comparing context and resource fields. It is possible though to create two resources with different types but same handle (same context and resource fields). When trying to remove one of the resources, vmci_resource_remove() may not remove the intended one, but the object will still be freed as in the case of the datagram type in vmci_datagram_destroy_handle(). vmci_resource_table will still hold a pointer to this freed resource leading to a use-after-free vulnerability. BUG: KASAN: use-after-free in vmci_handle_is_equal include/linux/vmw_vmci_defs.h:142 [inline] BUG: KASAN: use-after-free in vmci_resource_remove+0x3a1/0x410 drivers/misc/vmw_vmci/vmci_resource.c:147 Read of size 4 at addr ffff88801c16d800 by task syz-executor197/1592 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x82/0xa9 lib/dump_stack.c:106 print_address_description.constprop.0+0x21/0x366 mm/kasan/report.c:239 __kasan_report.cold+0x7f/0x132 mm/kasan/report.c:425 kasan_report+0x38/0x51 mm/kasan/report.c:442 vmci_handle_is_equal include/linux/vmw_vmci_defs.h:142 [inline] vmci_resource_remove+0x3a1/0x410 drivers/misc/vmw_vmci/vmci_resource.c:147 vmci_qp_broker_detach+0x89a/0x11b9 drivers/misc/vmw_vmci/vmci_queue_pair.c:2182 ctx_free_ctx+0x473/0xbe1 drivers/misc/vmw_vmci/vmci_context.c:444 kref_put include/linux/kref.h:65 [inline] vmci_ctx_put drivers/misc/vmw_vmci/vmci_context.c:497 [inline] vmci_ctx_destroy+0x170/0x1d6 drivers/misc/vmw_vmci/vmci_context.c:195 vmci_host_close+0x125/0x1ac drivers/misc/vmw_vmci/vmci_host.c:143 __fput+0x261/0xa34 fs/file_table.c:282 task_work_run+0xf0/0x194 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x184/0x189 kernel/entry/common.c:187 exit_to_user_mode_prepare+0x11b/0x123 kernel/entry/common.c:220 __syscall_exit_to_user_mode_work kernel/entry/common.c:302 [inline] syscall_exit_to_user_mode+0x18/0x42 kernel/entry/common.c:313 do_syscall_64+0x41/0x85 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x6e/0x0 This change ensures the type is also checked when removing the resource from vmci_resource_table in vmci_resource_remove(). • https://git.kernel.org/stable/c/bc63dedb7d46a7d690c6b6edf69136b88af06cc6 https://git.kernel.org/stable/c/f6365931bf7c07b2b397dbb06a4f6573cc9fae73 https://git.kernel.org/stable/c/b243d52b5f6f59f9d39e69b191fb3d58b94a43b1 https://git.kernel.org/stable/c/6c563a29857aa8053b67ee141191f69757f27f6e https://git.kernel.org/stable/c/ef5f4d0c5ee22d4f873116fec844ff6edaf3fa7d https://git.kernel.org/stable/c/b9efdf333174468651be40390cbc79c9f55d9cce https://git.kernel.org/stable/c/39e7e593418ccdbd151f2925fa6be1a616d16c96 https://git.kernel.org/stable/c/00fe5292f081f8d773e572df8e03bf6e1 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-46733 – btrfs: fix qgroup reserve leaks in cow_file_range
https://notcve.org/view.php?id=CVE-2024-46733
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix qgroup reserve leaks in cow_file_range In the buffered write path, the dirty page owns the qgroup reserve until it creates an ordered_extent. Therefore, any errors that occur before the ordered_extent is created must free that reservation, or else the space is leaked. The fstest generic/475 exercises various IO error paths, and is able to trigger errors in cow_file_range where we fail to get to allocating the ordered extent. Note that because we *do* clear delalloc, we are likely to remove the inode from the delalloc list, so the inodes/pages to not have invalidate/launder called on them in the commit abort path. This results in failures at the unmount stage of the test that look like: BTRFS: error (device dm-8 state EA) in cleanup_transaction:2018: errno=-5 IO failure BTRFS: error (device dm-8 state EA) in btrfs_replace_file_extents:2416: errno=-5 IO failure BTRFS warning (device dm-8 state EA): qgroup 0/5 has unreleased space, type 0 rsv 28672 ------------[ cut here ]------------ WARNING: CPU: 3 PID: 22588 at fs/btrfs/disk-io.c:4333 close_ctree+0x222/0x4d0 [btrfs] Modules linked in: btrfs blake2b_generic libcrc32c xor zstd_compress raid6_pq CPU: 3 PID: 22588 Comm: umount Kdump: loaded Tainted: G W 6.10.0-rc7-gab56fde445b8 #21 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 RIP: 0010:close_ctree+0x222/0x4d0 [btrfs] RSP: 0018:ffffb4465283be00 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffffa1a1818e1000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffb4465283bbe0 RDI: ffffa1a19374fcb8 RBP: ffffa1a1818e13c0 R08: 0000000100028b16 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000003 R12: ffffa1a18ad7972c R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f9168312b80(0000) GS:ffffa1a4afcc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f91683c9140 CR3: 000000010acaa000 CR4: 00000000000006f0 Call Trace: <TASK> ? close_ctree+0x222/0x4d0 [btrfs] ? __warn.cold+0x8e/0xea ? • https://git.kernel.org/stable/c/e42ef22bc10f0309c0c65d8d6ca8b4127a674b7f https://git.kernel.org/stable/c/30479f31d44d47ed00ae0c7453d9b253537005b2 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-46732 – drm/amd/display: Assign linear_pitch_alignment even for VM
https://notcve.org/view.php?id=CVE-2024-46732
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Assign linear_pitch_alignment even for VM [Description] Assign linear_pitch_alignment so we don't cause a divide by 0 error in VM environments • https://git.kernel.org/stable/c/4bd7710f2fecfc5fb2dda1ca2adc69db8a66b8b6 https://git.kernel.org/stable/c/d219f902b16d42f0cb8c499ea8f31cf3c0f36349 https://git.kernel.org/stable/c/d2fe7ac613a1ea8c346c9f5c89dc6ecc27232997 https://git.kernel.org/stable/c/c44b568931d23aed9d37ecbb31fb5fbdd198bf7b https://git.kernel.org/stable/c/984debc133efa05e62f5aa1a7a1dd8ca0ef041f4 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-46731 – drm/amd/pm: fix the Out-of-bounds read warning
https://notcve.org/view.php?id=CVE-2024-46731
In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: fix the Out-of-bounds read warning using index i - 1U may beyond element index for mc_data[] when i = 0. • https://git.kernel.org/stable/c/38e32a0d837443c91c4b615a067b976cfb925376 https://git.kernel.org/stable/c/3317966efcdc5101e93db21514b68917e7eb34ea https://git.kernel.org/stable/c/20c6373a6be93039f9d66029bb1e21038a060be1 https://git.kernel.org/stable/c/f1e261ced9bcad772a45a2fcdf413c3490e87299 https://git.kernel.org/stable/c/d83fb9f9f63e9a120bf405b078f829f0b2e58934 https://git.kernel.org/stable/c/12c6967428a099bbba9dfd247bb4322a984fcc0b •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-46730 – drm/amd/display: Ensure array index tg_inst won't be -1
https://notcve.org/view.php?id=CVE-2024-46730
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Ensure array index tg_inst won't be -1 [WHY & HOW] tg_inst will be a negative if timing_generator_count equals 0, which should be checked before used. This fixes 2 OVERRUN issues reported by Coverity. • https://git.kernel.org/stable/c/a64284b9e1999ad5580debced4bc6d6adb28aad4 https://git.kernel.org/stable/c/687fe329f18ab0ab0496b20ed2cb003d4879d931 •