CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-56623 – scsi: qla2xxx: Fix use after free on unload
https://notcve.org/view.php?id=CVE-2024-56623
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix use after free on unload System crash is observed with stack trace warning of use after free. There are 2 signals to tell dpc_thread to terminate (UNLOADING flag and kthread_stop). On setting the UNLOADING flag when dpc_thread happens to run at the time and sees the flag, this causes dpc_thread to exit and clean up itself. When kthread_stop is called for final cleanup, this causes use after free. Remove UNLOADING signal to terminate dpc_thread. Use the kthread_stop as the main signal to exit dpc_thread. [596663.812935] kernel BUG at mm/slub.c:294! [596663.812950] invalid opcode: 0000 [#1] SMP PTI [596663.812957] CPU: 13 PID: 1475935 Comm: rmmod Kdump: loaded Tainted: G IOE --------- - - 4.18.0-240.el8.x86_64 #1 [596663.812960] Hardware name: HP ProLiant DL380p Gen8, BIOS P70 08/20/2012 [596663.812974] RIP: 0010:__slab_free+0x17d/0x360 ... [596663.813008] Call Trace: [596663.813022] ? • https://git.kernel.org/stable/c/12f04fc8580eafb0510f805749553eb6213f323e https://git.kernel.org/stable/c/ca36d9d53745d5ec8946ef85006d4da605ea7c54 https://git.kernel.org/stable/c/b3e6f25176f248762a24d25ab8cf8c5e90874f80 https://git.kernel.org/stable/c/15369e774f27ec790f207de87c0b541e3f90b22d https://git.kernel.org/stable/c/6abf16d3c915b2feb68c1c8b25fcb71b13f98478 https://git.kernel.org/stable/c/07c903db0a2ff84b68efa1a74a4de353ea591eb0 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-56622 – scsi: ufs: core: sysfs: Prevent div by zero
https://notcve.org/view.php?id=CVE-2024-56622
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: sysfs: Prevent div by zero Prevent a division by 0 when monitoring is not enabled. • https://git.kernel.org/stable/c/1d8613a23f3c3b8f0101e453ff150e05a0d1cd4f https://git.kernel.org/stable/c/87bf3ea841a5d77beae6bb85af36b2b3848407ee https://git.kernel.org/stable/c/7b21233e5f72d10f08310689f993c1dbdfde9f2c https://git.kernel.org/stable/c/0069928727c2e95ca26c738fbe6e4b241aeaaf08 https://git.kernel.org/stable/c/9c191055c7abea4912fdb83cb9b261732b25a0c8 https://git.kernel.org/stable/c/eb48e9fc0028bed94a40a9352d065909f19e333c •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-56621 – scsi: ufs: core: Cancel RTC work during ufshcd_remove()
https://notcve.org/view.php?id=CVE-2024-56621
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Cancel RTC work during ufshcd_remove() Currently, RTC work is only cancelled during __ufshcd_wl_suspend(). When ufshcd is removed in ufshcd_remove(), RTC work is not cancelled. Due to this, any further trigger of the RTC work after ufshcd_remove() would result in a NULL pointer dereference as below: Unable to handle kernel NULL pointer dereference at virtual address 00000000000002a4 Workqueue: events ufshcd_rtc_work Call trace: _raw_spin_lock_irqsave+0x34/0x8c pm_runtime_get_if_active+0x24/0xb4 ufshcd_rtc_work+0x124/0x19c process_scheduled_works+0x18c/0x2d8 worker_thread+0x144/0x280 kthread+0x11c/0x128 ret_from_fork+0x10/0x20 Since RTC work accesses the ufshcd internal structures, it should be cancelled when ufshcd is removed. So do that in ufshcd_remove(), as per the order in ufshcd_init(). • https://git.kernel.org/stable/c/6bf999e0eb41850d5c857102535d5c53b2ede224 https://git.kernel.org/stable/c/2e7a3bb0331efb292e0fb022c36bc592137f0520 https://git.kernel.org/stable/c/1695c4361d35b7bdadd7b34f99c9c07741e181e5 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-56620 – scsi: ufs: qcom: Only free platform MSIs when ESI is enabled
https://notcve.org/view.php?id=CVE-2024-56620
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: qcom: Only free platform MSIs when ESI is enabled Otherwise, it will result in a NULL pointer dereference as below: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Call trace: mutex_lock+0xc/0x54 platform_device_msi_free_irqs_all+0x14/0x20 ufs_qcom_remove+0x34/0x48 [ufs_qcom] platform_remove+0x28/0x44 device_remove+0x4c/0x80 device_release_driver_internal+0xd8/0x178 driver_detach+0x50/0x9c bus_remove_driver+0x6c/0xbc driver_unregister+0x30/0x60 platform_driver_unregister+0x14/0x20 ufs_qcom_pltform_exit+0x18/0xb94 [ufs_qcom] __arm64_sys_delete_module+0x180/0x260 invoke_syscall+0x44/0x100 el0_svc_common.constprop.0+0xc0/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xdc el0t_64_sync_handler+0xc0/0xc4 el0t_64_sync+0x190/0x194 • https://git.kernel.org/stable/c/519b6274a7775f5fe00a086f189efb8f063467d1 https://git.kernel.org/stable/c/f99cb5f6344ef93777fd3add7979ebf291a852df https://git.kernel.org/stable/c/64506b3d23a337e98a74b18dcb10c8619365f2bd •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-56619 – nilfs2: fix potential out-of-bounds memory access in nilfs_find_entry()
https://notcve.org/view.php?id=CVE-2024-56619
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential out-of-bounds memory access in nilfs_find_entry() Syzbot reported that when searching for records in a directory where the inode's i_size is corrupted and has a large value, memory access outside the folio/page range may occur, or a use-after-free bug may be detected if KASAN is enabled. This is because nilfs_last_byte(), which is called by nilfs_find_entry() and others to calculate the number of valid bytes of directory data in a page from i_size and the page index, loses the upper 32 bits of the 64-bit size information due to an inappropriate type of local variable to which the i_size value is assigned. This caused a large byte offset value due to underflow in the end address calculation in the calling nilfs_find_entry(), resulting in memory access that exceeds the folio/page size. Fix this issue by changing the type of the local variable causing the bit loss from "unsigned int" to "u64". The return value of nilfs_last_byte() is also of type "unsigned int", but it is truncated so as not to exceed PAGE_SIZE and no bit loss occurs, so no change is required. • https://git.kernel.org/stable/c/2ba466d74ed74f073257f86e61519cb8f8f46184 https://git.kernel.org/stable/c/09d6d05579fd46e61abf6e457bb100ff11f3a9d3 https://git.kernel.org/stable/c/e3732102a9d638d8627d14fdf7b208462f0520e0 https://git.kernel.org/stable/c/48eb6e7404948032bbe811c5affbe39f6b316951 https://git.kernel.org/stable/c/5af8366625182f01f6d8465c9a3210574673af57 https://git.kernel.org/stable/c/c3afea07477baccdbdec4483f8d5e59d42a3f67f https://git.kernel.org/stable/c/31f7b57a77d4c82a34ddcb6ff35b5aa577ef153e https://git.kernel.org/stable/c/985ebec4ab0a28bb5910c3b1481a40fbf •