CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2022-48919 – cifs: fix double free race when mount fails in cifs_get_root()
https://notcve.org/view.php?id=CVE-2022-48919
In the Linux kernel, the following vulnerability has been resolved: cifs: fix double free race when mount fails in cifs_get_root() When cifs_get_root() fails during cifs_smb3_do_mount() we call deactivate_locked_super() which eventually will call delayed_free() which will free the context. In this situation we should not proceed to enter the out: section in cifs_smb3_do_mount() and free the same resources a second time. [Thu Feb 10 12:59:06 2022] BUG: KASAN: use-after-free in rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] Read of size 8 at addr ffff888364f4d110 by task swapper/1/0 [Thu Feb 10 12:59:06 2022] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G OE 5.17.0-rc3+ #4 [Thu Feb 10 12:59:06 2022] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.0 12/17/2019 [Thu Feb 10 12:59:06 2022] Call Trace: [Thu Feb 10 12:59:06 2022] <IRQ> [Thu Feb 10 12:59:06 2022] dump_stack_lvl+0x5d/0x78 [Thu Feb 10 12:59:06 2022] print_address_description.constprop.0+0x24/0x150 [Thu Feb 10 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] kasan_report.cold+0x7d/0x117 [Thu Feb 10 12:59:06 2022] ? rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] __asan_load8+0x86/0xa0 [Thu Feb 10 12:59:06 2022] rcu_cblist_dequeue+0x32/0x60 [Thu Feb 10 12:59:06 2022] rcu_core+0x547/0xca0 [Thu Feb 10 12:59:06 2022] ? call_rcu+0x3c0/0x3c0 [Thu Feb 10 12:59:06 2022] ? __this_cpu_preempt_check+0x13/0x20 [Thu Feb 10 12:59:06 2022] ? • https://git.kernel.org/stable/c/da834d6c1147c7519a9e55b510a03b7055104749 https://git.kernel.org/stable/c/147a0e71ccf96df9fc8c2ac500829d8e423ef02c https://git.kernel.org/stable/c/2fe0e281f7ad0a62259649764228227dd6b2561d https://git.kernel.org/stable/c/e208668ef7ba23efcbf76a8200cab8deee501c4d https://git.kernel.org/stable/c/df9db1a2af37f39ad1653c7b9b0d275d72d0bc67 https://git.kernel.org/stable/c/546d60859ecf13380fcabcbeace53a5971493a2b https://git.kernel.org/stable/c/563431c1f3c8f2230e4a9c445fa23758742bc4f0 https://git.kernel.org/stable/c/3d6cc9898efdfb062efb74dc18cfc700e •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2022-48902 – btrfs: do not WARN_ON() if we have PageError set
https://notcve.org/view.php?id=CVE-2022-48902
In the Linux kernel, the following vulnerability has been resolved: btrfs: do not WARN_ON() if we have PageError set Whenever we do any extent buffer operations we call assert_eb_page_uptodate() to complain loudly if we're operating on an non-uptodate page. Our overnight tests caught this warning earlier this week WARNING: CPU: 1 PID: 553508 at fs/btrfs/extent_io.c:6849 assert_eb_page_uptodate+0x3f/0x50 CPU: 1 PID: 553508 Comm: kworker/u4:13 Tainted: G W 5.17.0-rc3+ #564 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014 Workqueue: btrfs-cache btrfs_work_helper RIP: 0010:assert_eb_page_uptodate+0x3f/0x50 RSP: 0018:ffffa961440a7c68 EFLAGS: 00010246 RAX: 0017ffffc0002112 RBX: ffffe6e74453f9c0 RCX: 0000000000001000 RDX: ffffe6e74467c887 RSI: ffffe6e74453f9c0 RDI: ffff8d4c5efc2fc0 RBP: 0000000000000d56 R08: ffff8d4d4a224000 R09: 0000000000000000 R10: 00015817fa9d1ef0 R11: 000000000000000c R12: 00000000000007b1 R13: ffff8d4c5efc2fc0 R14: 0000000001500000 R15: 0000000001cb1000 FS: 0000000000000000(0000) GS:ffff8d4dbbd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff31d3448d8 CR3: 0000000118be8004 CR4: 0000000000370ee0 Call Trace: extent_buffer_test_bit+0x3f/0x70 free_space_test_bit+0xa6/0xc0 load_free_space_tree+0x1f6/0x470 caching_thread+0x454/0x630 ? rcu_read_lock_sched_held+0x12/0x60 ? rcu_read_lock_sched_held+0x12/0x60 ? rcu_read_lock_sched_held+0x12/0x60 ? • https://git.kernel.org/stable/c/e00077aa439f0e8f416699fa4e9600db6583db70 https://git.kernel.org/stable/c/9efcc83b33b576302147634eca9bece8e3737e34 https://git.kernel.org/stable/c/a50e1fcbc9b85fd4e95b89a75c0884cb032a3e06 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2022-48901 – btrfs: do not start relocation until in progress drops are done
https://notcve.org/view.php?id=CVE-2022-48901
In the Linux kernel, the following vulnerability has been resolved: btrfs: do not start relocation until in progress drops are done We hit a bug with a recovering relocation on mount for one of our file systems in production. I reproduced this locally by injecting errors into snapshot delete with balance running at the same time. This presented as an error while looking up an extent item WARNING: CPU: 5 PID: 1501 at fs/btrfs/extent-tree.c:866 lookup_inline_extent_backref+0x647/0x680 CPU: 5 PID: 1501 Comm: btrfs-balance Not tainted 5.16.0-rc8+ #8 RIP: 0010:lookup_inline_extent_backref+0x647/0x680 RSP: 0018:ffffae0a023ab960 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000000000c RDI: 0000000000000000 RBP: ffff943fd2a39b60 R08: 0000000000000000 R09: 0000000000000001 R10: 0001434088152de0 R11: 0000000000000000 R12: 0000000001d05000 R13: ffff943fd2a39b60 R14: ffff943fdb96f2a0 R15: ffff9442fc923000 FS: 0000000000000000(0000) GS:ffff944e9eb40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1157b1fca8 CR3: 000000010f092000 CR4: 0000000000350ee0 Call Trace: <TASK> insert_inline_extent_backref+0x46/0xd0 __btrfs_inc_extent_ref.isra.0+0x5f/0x200 ? btrfs_merge_delayed_refs+0x164/0x190 __btrfs_run_delayed_refs+0x561/0xfa0 ? btrfs_search_slot+0x7b4/0xb30 ? • https://git.kernel.org/stable/c/6599d5e8bd758d897fd2ef4dc388ae50278b1f7e https://git.kernel.org/stable/c/5e70bc827b563caf22e1203428cc3719643de5aa https://git.kernel.org/stable/c/b4be6aefa73c9a6899ef3ba9c5faaa8a66e333ef •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2023-52912 – drm/amdgpu: Fixed bug on error when unloading amdgpu
https://notcve.org/view.php?id=CVE-2023-52912
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fixed bug on error when unloading amdgpu Fixed bug on error when unloading amdgpu. The error message is as follows: [ 377.706202] kernel BUG at drivers/gpu/drm/drm_buddy.c:278! [ 377.706215] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [ 377.706222] CPU: 4 PID: 8610 Comm: modprobe Tainted: G IOE 6.0.0-thomas #1 [ 377.706231] Hardware name: ASUS System Product Name/PRIME Z390-A, BIOS 2004 11/02/2021 [ 377.706238] RIP: 0010:drm_buddy_free_block+0x26/0x30 [drm_buddy] [ 377.706264] Code: 00 00 00 90 0f 1f 44 00 00 48 8b 0e 89 c8 25 00 0c 00 00 3d 00 04 00 00 75 10 48 8b 47 18 48 d3 e0 48 01 47 28 e9 fa fe ff ff <0f> 0b 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 54 55 48 89 f5 53 [ 377.706282] RSP: 0018:ffffad2dc4683cb8 EFLAGS: 00010287 [ 377.706289] RAX: 0000000000000000 RBX: ffff8b1743bd5138 RCX: 0000000000000000 [ 377.706297] RDX: ffff8b1743bd5160 RSI: ffff8b1743bd5c78 RDI: ffff8b16d1b25f70 [ 377.706304] RBP: ffff8b1743bd59e0 R08: 0000000000000001 R09: 0000000000000001 [ 377.706311] R10: ffff8b16c8572400 R11: ffffad2dc4683cf0 R12: ffff8b16d1b25f70 [ 377.706318] R13: ffff8b16d1b25fd0 R14: ffff8b1743bd59c0 R15: ffff8b16d1b25f70 [ 377.706325] FS: 00007fec56c72c40(0000) GS:ffff8b1836500000(0000) knlGS:0000000000000000 [ 377.706334] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 377.706340] CR2: 00007f9b88c1ba50 CR3: 0000000110450004 CR4: 00000000003706e0 [ 377.706347] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 377.706354] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 377.706361] Call Trace: [ 377.706365] <TASK> [ 377.706369] drm_buddy_free_list+0x2a/0x60 [drm_buddy] [ 377.706376] amdgpu_vram_mgr_fini+0xea/0x180 [amdgpu] [ 377.706572] amdgpu_ttm_fini+0x12e/0x1a0 [amdgpu] [ 377.706650] amdgpu_bo_fini+0x22/0x90 [amdgpu] [ 377.706727] gmc_v11_0_sw_fini+0x26/0x30 [amdgpu] [ 377.706821] amdgpu_device_fini_sw+0xa1/0x3c0 [amdgpu] [ 377.706897] amdgpu_driver_release_kms+0x12/0x30 [amdgpu] [ 377.706975] drm_dev_release+0x20/0x40 [drm] [ 377.707006] release_nodes+0x35/0xb0 [ 377.707014] devres_release_all+0x8b/0xc0 [ 377.707020] device_unbind_cleanup+0xe/0x70 [ 377.707027] device_release_driver_internal+0xee/0x160 [ 377.707033] driver_detach+0x44/0x90 [ 377.707039] bus_remove_driver+0x55/0xe0 [ 377.707045] pci_unregister_driver+0x3b/0x90 [ 377.707052] amdgpu_exit+0x11/0x6c [amdgpu] [ 377.707194] __x64_sys_delete_module+0x142/0x2b0 [ 377.707201] ? fpregs_assert_state_consistent+0x22/0x50 [ 377.707208] ? exit_to_user_mode_prepare+0x3e/0x190 [ 377.707215] do_syscall_64+0x38/0x90 [ 377.707221] entry_SYSCALL_64_after_hwframe+0x63/0xcd • https://git.kernel.org/stable/c/9196eb7c52e55749a332974f0081f77d53d60199 https://git.kernel.org/stable/c/99f1a36c90a7524972be5a028424c57fa17753ee •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2023-52903 – io_uring: lock overflowing for IOPOLL
https://notcve.org/view.php?id=CVE-2023-52903
In the Linux kernel, the following vulnerability has been resolved: io_uring: lock overflowing for IOPOLL syzbot reports an issue with overflow filling for IOPOLL: WARNING: CPU: 0 PID: 28 at io_uring/io_uring.c:734 io_cqring_event_overflow+0x1c0/0x230 io_uring/io_uring.c:734 CPU: 0 PID: 28 Comm: kworker/u4:1 Not tainted 6.2.0-rc3-syzkaller-16369-g358a161a6a9e #0 Workqueue: events_unbound io_ring_exit_work Call trace: io_cqring_event_overflow+0x1c0/0x230 io_uring/io_uring.c:734 io_req_cqe_overflow+0x5c/0x70 io_uring/io_uring.c:773 io_fill_cqe_req io_uring/io_uring.h:168 [inline] io_do_iopoll+0x474/0x62c io_uring/rw.c:1065 io_iopoll_try_reap_events+0x6c/0x108 io_uring/io_uring.c:1513 io_uring_try_cancel_requests+0x13c/0x258 io_uring/io_uring.c:3056 io_ring_exit_work+0xec/0x390 io_uring/io_uring.c:2869 process_one_work+0x2d8/0x504 kernel/workqueue.c:2289 worker_thread+0x340/0x610 kernel/workqueue.c:2436 kthread+0x12c/0x158 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:863 There is no real problem for normal IOPOLL as flush is also called with uring_lock taken, but it's getting more complicated for IOPOLL|SQPOLL, for which __io_cqring_overflow_flush() happens from the CQ waiting path. • https://git.kernel.org/stable/c/de77faee280163ff03b7ab64af6c9d779a43d4c4 https://git.kernel.org/stable/c/ed4629d1e968359fbb91d0a3780b1e86a2c08845 https://git.kernel.org/stable/c/7fc3990dad04a677606337ebc61964094d6cb41b https://git.kernel.org/stable/c/544d163d659d45a206d8929370d5a2984e546cb7 •