CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2023-52905 – octeontx2-pf: Fix resource leakage in VF driver unbind
https://notcve.org/view.php?id=CVE-2023-52905
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: Fix resource leakage in VF driver unbind resources allocated like mcam entries to support the Ntuple feature and hash tables for the tc feature are not getting freed in driver unbind. This patch fixes the issue. • https://git.kernel.org/stable/c/2da48943274712fc3204089d9a97078350765635 https://git.kernel.org/stable/c/c8ca0ad10df08ea36bcac1288062d567d22604c9 https://git.kernel.org/stable/c/53da7aec32982f5ee775b69dce06d63992ce4af3 •
CVSS: -EPSS: 0%CPEs: 1EXPL: 0CVE-2023-52904 – ALSA: usb-audio: Fix possible NULL pointer dereference in snd_usb_pcm_has_fixed_rate()
https://notcve.org/view.php?id=CVE-2023-52904
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix possible NULL pointer dereference in snd_usb_pcm_has_fixed_rate() The subs function argument may be NULL, so do not use it before the NULL check. • https://git.kernel.org/stable/c/bfd36b1d1869859af7ba94dc95ec05e74f40d0b7 https://git.kernel.org/stable/c/f57204edc10760c935d8d36ea999dc8acf018030 https://git.kernel.org/stable/c/a474d4ad59cd4642d1b7e3a6c08cef9eca0992c8 https://git.kernel.org/stable/c/92a9c0ad86d47ff4cce899012e355c400f02cfb8 •
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 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2023-52901 – usb: xhci: Check endpoint is valid before dereferencing it
https://notcve.org/view.php?id=CVE-2023-52901
In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Check endpoint is valid before dereferencing it When the host controller is not responding, all URBs queued to all endpoints need to be killed. This can cause a kernel panic if we dereference an invalid endpoint. Fix this by using xhci_get_virt_ep() helper to find the endpoint and checking if the endpoint is valid before dereferencing it. [233311.853271] xhci-hcd xhci-hcd.1.auto: xHCI host controller not responding, assume dead [233311.853393] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000e8 [233311.853964] pc : xhci_hc_died+0x10c/0x270 [233311.853971] lr : xhci_hc_died+0x1ac/0x270 [233311.854077] Call trace: [233311.854085] xhci_hc_died+0x10c/0x270 [233311.854093] xhci_stop_endpoint_command_watchdog+0x100/0x1a4 [233311.854105] call_timer_fn+0x50/0x2d4 [233311.854112] expire_timers+0xac/0x2e4 [233311.854118] run_timer_softirq+0x300/0xabc [233311.854127] __do_softirq+0x148/0x528 [233311.854135] irq_exit+0x194/0x1a8 [233311.854143] __handle_domain_irq+0x164/0x1d0 [233311.854149] gic_handle_irq.22273+0x10c/0x188 [233311.854156] el1_irq+0xfc/0x1a8 [233311.854175] lpm_cpuidle_enter+0x25c/0x418 [msm_pm] [233311.854185] cpuidle_enter_state+0x1f0/0x764 [233311.854194] do_idle+0x594/0x6ac [233311.854201] cpu_startup_entry+0x7c/0x80 [233311.854209] secondary_start_kernel+0x170/0x198 • https://git.kernel.org/stable/c/50e8725e7c429701e530439013f9681e1fa36b5d https://git.kernel.org/stable/c/375be2dd61a072f7b1cac9b17eea59e07b58db3a https://git.kernel.org/stable/c/2d2820d5f375563690c96e60676855205abfb7f5 https://git.kernel.org/stable/c/9891e5c73cab3fd9ed532dc50e9799e55e974766 https://git.kernel.org/stable/c/66fc1600855c05c4ba4e997184c91cf298e0405c https://git.kernel.org/stable/c/f39c813af0b64f44af94e435c07bfa1ddc2575f5 https://git.kernel.org/stable/c/08864dc14a6803f0377ca77b9740b26db30c020f https://git.kernel.org/stable/c/e8fb5bc76eb86437ab87002d4a36d6da0 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2023-52900 – nilfs2: fix general protection fault in nilfs_btree_insert()
https://notcve.org/view.php?id=CVE-2023-52900
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix general protection fault in nilfs_btree_insert() If nilfs2 reads a corrupted disk image and tries to reads a b-tree node block by calling __nilfs_btree_get_block() against an invalid virtual block address, it returns -ENOENT because conversion of the virtual block address to a disk block address fails. However, this return value is the same as the internal code that b-tree lookup routines return to indicate that the block being searched does not exist, so functions that operate on that b-tree may misbehave. When nilfs_btree_insert() receives this spurious 'not found' code from nilfs_btree_do_lookup(), it misunderstands that the 'not found' check was successful and continues the insert operation using incomplete lookup path data, causing the following crash: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] ... RIP: 0010:nilfs_btree_get_nonroot_node fs/nilfs2/btree.c:418 [inline] RIP: 0010:nilfs_btree_prepare_insert fs/nilfs2/btree.c:1077 [inline] RIP: 0010:nilfs_btree_insert+0x6d3/0x1c10 fs/nilfs2/btree.c:1238 Code: bc 24 80 00 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 4b 02 92 fe 4d 8b 3f 49 83 c7 28 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 2e 02 92 fe 4d 8b 3f 49 83 c7 02 ... Call Trace: <TASK> nilfs_bmap_do_insert fs/nilfs2/bmap.c:121 [inline] nilfs_bmap_insert+0x20d/0x360 fs/nilfs2/bmap.c:147 nilfs_get_block+0x414/0x8d0 fs/nilfs2/inode.c:101 __block_write_begin_int+0x54c/0x1a80 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x93/0x1e0 fs/buffer.c:2102 nilfs_write_begin+0x9c/0x110 fs/nilfs2/inode.c:261 generic_perform_write+0x2e4/0x5e0 mm/filemap.c:3772 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3900 generic_file_write_iter+0xab/0x310 mm/filemap.c:3932 call_write_iter include/linux/fs.h:2186 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x7dc/0xc50 fs/read_write.c:584 ksys_write+0x177/0x2a0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd ... </TASK> This patch fixes the root cause of this problem by replacing the error code that __nilfs_btree_get_block() returns on block address conversion failure from -ENOENT to another internal code -EINVAL which means that the b-tree metadata is corrupted. By returning -EINVAL, it propagates without glitches, and for all relevant b-tree operations, functions in the upper bmap layer output an error message indicating corrupted b-tree metadata via nilfs_bmap_convert_error(), and code -EIO will be eventually returned as it should be. • https://git.kernel.org/stable/c/3c2a2ff67d46106715c2132021b98bd057c27545 https://git.kernel.org/stable/c/d9fde9eab1766170ff2ade67d09178d2cfd78749 https://git.kernel.org/stable/c/b0ba060d3287108eba17603bee3810e4cf2c272d https://git.kernel.org/stable/c/712bd74eccb9d3626a0a236641962eca8e11a243 https://git.kernel.org/stable/c/45627a1a6450662e1e0f8174ef07b05710a20062 https://git.kernel.org/stable/c/0bf463939c09e5b2c35c71ed74a5fd60a74d6a04 https://git.kernel.org/stable/c/7633355e5c7f29c049a9048e461427d1d8ed3051 •