CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-47736 – erofs: handle overlapped pclusters out of crafted images properly
https://notcve.org/view.php?id=CVE-2024-47736
In the Linux kernel, the following vulnerability has been resolved: erofs: handle overlapped pclusters out of crafted images properly syzbot reported a task hang issue due to a deadlock case where it is waiting for the folio lock of a cached folio that will be used for cache I/Os. After looking into the crafted fuzzed image, I found it's formed with several overlapped big pclusters as below: Ext: logical offset | length : physical offset | length 0: 0.. 16384 | 16384 : 151552.. 167936 | 16384 1: 16384.. 32768 | 16384 : 155648.. 172032 | 16384 2: 32768.. 49152 | 16384 : 537223168.. 537239552 | 16384 ... Here, extent 0/1 are physically overlapped although it's entirely _impossible_ for normal filesystem images generated by mkfs. First, managed folios containing compressed data will be marked as up-to-date and then unlocked immediately (unlike in-place folios) when compressed I/Os are complete. If physical blocks are not submitted in the incremental order, there should be separate BIOs to avoid dependency issues. However, the current code mis-arranges z_erofs_fill_bio_vec() and BIO submission which causes unexpected BIO waits. Second, managed folios will be connected to their own pclusters for efficient inter-queries. However, this is somewhat hard to implement easily if overlapped big pclusters exist. Again, these only appear in fuzzed images so let's simply fall back to temporary short-lived pages for correctness. Additionally, it justifies that referenced managed folios cannot be truncated for now and reverts part of commit 2080ca1ed3e4 ("erofs: tidy up `struct z_erofs_bvec`") for simplicity although it shouldn't be any difference. • https://git.kernel.org/stable/c/8e6c8fa9f2e95c88a642521a5da19a8e31748846 https://git.kernel.org/stable/c/b9b30af0e86ffb485301ecd83b9129c9dfb7ebf8 https://git.kernel.org/stable/c/9cfa199bcbbbba31cbf97b2786f44f4464f3f29a https://git.kernel.org/stable/c/9e2f9d34dd12e6e5b244ec488bcebd0c2d566c50 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-47735 – RDMA/hns: Fix spin_unlock_irqrestore() called with IRQs enabled
https://notcve.org/view.php?id=CVE-2024-47735
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix spin_unlock_irqrestore() called with IRQs enabled Fix missuse of spin_lock_irq()/spin_unlock_irq() when spin_lock_irqsave()/spin_lock_irqrestore() was hold. This was discovered through the lock debugging, and the corresponding log is as follows: raw_local_irq_restore() called with IRQs enabled WARNING: CPU: 96 PID: 2074 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x30/0x40 ... Call trace: warn_bogus_irq_restore+0x30/0x40 _raw_spin_unlock_irqrestore+0x84/0xc8 add_qp_to_list+0x11c/0x148 [hns_roce_hw_v2] hns_roce_create_qp_common.constprop.0+0x240/0x780 [hns_roce_hw_v2] hns_roce_create_qp+0x98/0x160 [hns_roce_hw_v2] create_qp+0x138/0x258 ib_create_qp_kernel+0x50/0xe8 create_mad_qp+0xa8/0x128 ib_mad_port_open+0x218/0x448 ib_mad_init_device+0x70/0x1f8 add_client_context+0xfc/0x220 enable_device_and_get+0xd0/0x140 ib_register_device.part.0+0xf4/0x1c8 ib_register_device+0x34/0x50 hns_roce_register_device+0x174/0x3d0 [hns_roce_hw_v2] hns_roce_init+0xfc/0x2c0 [hns_roce_hw_v2] __hns_roce_hw_v2_init_instance+0x7c/0x1d0 [hns_roce_hw_v2] hns_roce_hw_v2_init_instance+0x9c/0x180 [hns_roce_hw_v2] • https://git.kernel.org/stable/c/9a4435375cd151e07c0c38fa601b00115986091b https://git.kernel.org/stable/c/07f0f643d7e570dbe8ef6f5c3367a43e3086a335 https://git.kernel.org/stable/c/29c0f546d3fd66238b42cf25bcd5f193bb1cf794 https://git.kernel.org/stable/c/425589d4af09c49574bd71ac31f811362a5126c3 https://git.kernel.org/stable/c/094a1821903f33fb91de4b71087773ee16aeb3a0 https://git.kernel.org/stable/c/2656336a84fcb6802f6e6c233f4661891deea24f https://git.kernel.org/stable/c/a1a3403bb1826c8ec787f0d60c3e7b54f419129e https://git.kernel.org/stable/c/74d315b5af180220d561684d158977301 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-47730 – crypto: hisilicon/qm - inject error before stopping queue
https://notcve.org/view.php?id=CVE-2024-47730
In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/qm - inject error before stopping queue The master ooo cannot be completely closed when the accelerator core reports memory error. Therefore, the driver needs to inject the qm error to close the master ooo. Currently, the qm error is injected after stopping queue, memory may be released immediately after stopping queue, causing the device to access the released memory. Therefore, error is injected to close master ooo before stopping queue to ensure that the device does not access the released memory. • https://git.kernel.org/stable/c/6c6dd5802c2d6769fa589c0e8de54299def199a7 https://git.kernel.org/stable/c/98d3be34c9153eceadb56de50d9f9347e88d86e4 https://git.kernel.org/stable/c/aa3e0db35a60002fb34ef0e4ad203aa59fd00203 https://git.kernel.org/stable/c/f8024f12752e32ffbbf59e1c09d949f977ff743f https://git.kernel.org/stable/c/c5f5b813e546f7fe133539c3d7a5086cc8dd2aa1 https://git.kernel.org/stable/c/b04f06fc0243600665b3b50253869533b7938468 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-47728 – bpf: Zero former ARG_PTR_TO_{LONG,INT} args in case of error
https://notcve.org/view.php?id=CVE-2024-47728
In the Linux kernel, the following vulnerability has been resolved: bpf: Zero former ARG_PTR_TO_{LONG,INT} args in case of error For all non-tracing helpers which formerly had ARG_PTR_TO_{LONG,INT} as input arguments, zero the value for the case of an error as otherwise it could leak memory. For tracing, it is not needed given CAP_PERFMON can already read all kernel memory anyway hence bpf_get_func_arg() and bpf_get_func_ret() is skipped in here. Also, the MTU helpers mtu_len pointer value is being written but also read. Technically, the MEM_UNINIT should not be there in order to always force init. Removing MEM_UNINIT needs more verifier rework though: MEM_UNINIT right now implies two things actually: i) write into memory, ii) memory does not have to be initialized. If we lift MEM_UNINIT, it then becomes: i) read into memory, ii) memory must be initialized. This means that for bpf_*_check_mtu() we're readding the issue we're trying to fix, that is, it would then be able to write back into things like .rodata BPF maps. Follow-up work will rework the MEM_UNINIT semantics such that the intent can be better expressed. • https://git.kernel.org/stable/c/d7a4cb9b6705a89937d12c8158a35a3145dc967a https://git.kernel.org/stable/c/8397bf78988f3ae9dbebb0200189a62a57264980 https://git.kernel.org/stable/c/a634fa8e480ac2423f86311a602f6295df2c8ed0 https://git.kernel.org/stable/c/599d15b6d03356a97bff7a76155c5604c42a2962 https://git.kernel.org/stable/c/594a9f5a8d2de2573a856e506f77ba7dd2cefc6a https://git.kernel.org/stable/c/4b3786a6c5397dc220b1483d8e2f4867743e966f •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-47726 – f2fs: fix to wait dio completion
https://notcve.org/view.php?id=CVE-2024-47726
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to wait dio completion It should wait all existing dio write IOs before block removal, otherwise, previous direct write IO may overwrite data in the block which may be reused by other inode. • https://git.kernel.org/stable/c/e3db757ff9b7101ae68650ac5f6dd5743b68164e https://git.kernel.org/stable/c/96cfeb0389530ae32ade8a48ae3ae1ac3b6c009d •