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Уязвимости linux · Страница 160

За последние 30 дней в linux опубликовано уязвимостей: 206; в каталоге KEV: 0.

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  1. CVE-2023-52752

    Высокий · CVSS 7.8EPSS 0,25%Нет опубликованного исправления

    smb: client: fix use-after-free bug in cifs_debug_data_proc_show()

    In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free bug in cifs_debug_data_proc_show() Skip SMB sessions that are being teared down (e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show() to avoid use-after-free in @ses. This fixes the following GPF when reading from /proc/fs/cifs/DebugData while mounting and umounting [ 816.251274] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6d81: 0000 [#1] PREEMPT SMP NOPTI ... [ 816.260138] Call Trace: [ 816.260329] <TASK> [ 816.260499] ? die_addr+0x36/0x90 [ 816.260762] ? exc_general_prote

    linuxОперационные системы
    Опубликовано Обновлено
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  2. CVE-2023-52750

    Средний · CVSS 5.5EPSS 0,24%Нет опубликованного исправления

    arm64: Restrict CPU_BIG_ENDIAN to GNU as or LLVM IAS 15.x or newer

    In the Linux kernel, the following vulnerability has been resolved: arm64: Restrict CPU_BIG_ENDIAN to GNU as or LLVM IAS 15.x or newer Prior to LLVM 15.0.0, LLVM's integrated assembler would incorrectly byte-swap NOP when compiling for big-endian, and the resulting series of bytes happened to match the encoding of FNMADD S21, S30, S0, S0. This went unnoticed until commit: 34f66c4c4d5518c1 ("arm64: Use a positive cpucap for FP/SIMD") Prior to that commit, the kernel would always enable the use of FPSIMD early in boot when __cpu_setup() initialized CPACR_EL1, and so usage of FNMADD within the kernel was not detected, but could result in

    linuxОперационные системы
    Опубликовано Обновлено
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  3. CVE-2023-52749

    Средний · CVSS 4.7EPSS 0,18%Нет опубликованного исправления

    spi: Fix null dereference on suspend

    In the Linux kernel, the following vulnerability has been resolved: spi: Fix null dereference on suspend A race condition exists where a synchronous (noqueue) transfer can be active during a system suspend. This can cause a null pointer dereference exception to occur when the system resumes. Example order of events leading to the exception: 1. spi_sync() calls __spi_transfer_message_noqueue() which sets ctlr->cur_msg 2. Spi transfer begins via spi_transfer_one_message() 3. System is suspended interrupting the transfer context 4. System is resumed 6. spi_controller_resume() calls spi_start_queue() which resets cur_msg to NULL 7. Spi t

    linuxОперационные системы
    Опубликовано Обновлено
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  4. CVE-2022-48710

    Средний · CVSS 5.7EPSS 0,26%Нет опубликованного исправления

    drm/radeon: fix a possible null pointer dereference

    In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix a possible null pointer dereference In radeon_fp_native_mode(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. The failure status of drm_cvt_mode() on the other path is checked too.

    linuxОперационные системы
    Опубликовано Обновлено
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  5. CVE-2023-52742

    Средний · CVSS 5.5EPSS 0,25%Нет опубликованного исправления

    net: USB: Fix wrong-direction WARNING in plusb.c

    In the Linux kernel, the following vulnerability has been resolved: net: USB: Fix wrong-direction WARNING in plusb.c The syzbot fuzzer detected a bug in the plusb network driver: A zero-length control-OUT transfer was treated as a read instead of a write. In modern kernels this error provokes a WARNING: usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0 WARNING: CPU: 0 PID: 4645 at drivers/usb/core/urb.c:411 usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 Modules linked in: CPU: 1 PID: 4645 Comm: dhcpcd Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0 Hardware name: Google Google Compute Engine/Google Co

    linuxОперационные системы
    Опубликовано Обновлено
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  6. CVE-2023-52741

    Критический · CVSS 9.8EPSS 0,73%Нет опубликованного исправления

    cifs: Fix use-after-free in rdata->read_into_pages()

    In the Linux kernel, the following vulnerability has been resolved: cifs: Fix use-after-free in rdata->read_into_pages() When the network status is unstable, use-after-free may occur when read data from the server. BUG: KASAN: use-after-free in readpages_fill_pages+0x14c/0x7e0 Call Trace: <TASK> dump_stack_lvl+0x38/0x4c print_report+0x16f/0x4a6 kasan_report+0xb7/0x130 readpages_fill_pages+0x14c/0x7e0 cifs_readv_receive+0x46d/0xa40 cifs_demultiplex_thread+0x121c/0x1490 kthread+0x16b/0x1a0 ret_from_fork+0x2c/0x50 </TASK> Allocated by task 2535: kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30

    linuxОперационные системы
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  7. CVE-2023-52732

    Критический · CVSS 9.8EPSS 0,53%Нет опубликованного исправления

    ceph: blocklist the kclient when receiving corrupted snap trace

    In the Linux kernel, the following vulnerability has been resolved: ceph: blocklist the kclient when receiving corrupted snap trace When received corrupted snap trace we don't know what exactly has happened in MDS side. And we shouldn't continue IOs and metadatas access to MDS, which may corrupt or get incorrect contents. This patch will just block all the further IO/MDS requests immediately and then evict the kclient itself. The reason why we still need to evict the kclient just after blocking all the further IOs is that the MDS could revoke the caps faster.

    linuxОперационные системы
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  8. CVE-2023-52730

    Средний · CVSS 5.5EPSS 0,25%Нет опубликованного исправления

    mmc: sdio: fix possible resource leaks in some error paths

    In the Linux kernel, the following vulnerability has been resolved: mmc: sdio: fix possible resource leaks in some error paths If sdio_add_func() or sdio_init_func() fails, sdio_remove_func() can not release the resources, because the sdio function is not presented in these two cases, it won't call of_node_put() or put_device(). To fix these leaks, make sdio_func_present() only control whether device_del() needs to be called or not, then always call of_node_put() and put_device(). In error case in sdio_init_func(), the reference of 'card->dev' is not get, to avoid redundant put in sdio_free_func_cis(), move the get_device() to sdio_alloc_

    linuxОперационные системы
    Опубликовано Обновлено
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  9. CVE-2023-52708

    Средний · CVSS 5.5EPSS 0,25%Нет опубликованного исправления

    mmc: mmc_spi: fix error handling in mmc_spi_probe()

    In the Linux kernel, the following vulnerability has been resolved: mmc: mmc_spi: fix error handling in mmc_spi_probe() If mmc_add_host() fails, it doesn't need to call mmc_remove_host(), or it will cause null-ptr-deref, because of deleting a not added device in mmc_remove_host(). To fix this, goto label 'fail_glue_init', if mmc_add_host() fails, and change the label 'fail_add_host' to 'fail_gpiod_request'.

    linuxОперационные системы
    Опубликовано Обновлено
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  10. CVE-2023-52705

    Средний · CVSS 5.5EPSS 0,25%Нет опубликованного исправления

    nilfs2: fix underflow in second superblock position calculations

    In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix underflow in second superblock position calculations Macro NILFS_SB2_OFFSET_BYTES, which computes the position of the second superblock, underflows when the argument device size is less than 4096 bytes. Therefore, when using this macro, it is necessary to check in advance that the device size is not less than a lower limit, or at least that underflow does not occur. The current nilfs2 implementation lacks this check, causing out-of-bound block access when mounting devices smaller than 4096 bytes: I/O error, dev loop0, sector 36028797018963960 op 0x0:(READ) f

    linuxОперационные системы
    Опубликовано Обновлено
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  11. CVE-2023-52703

    Низкий · CVSS 3.3EPSS 0,25%Нет опубликованного исправления

    net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path

    In the Linux kernel, the following vulnerability has been resolved: net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path syzbot reported that act_len in kalmia_send_init_packet() is uninitialized when passing it to the first usb_bulk_msg error path. Jiri Pirko noted that it's pointless to pass it in the error path, and that the value that would be printed in the second error path would be the value of act_len from the first call to usb_bulk_msg.[1] With this in mind, let's just not pass act_len to the usb_bulk_msg error paths. 1: https://lore.kernel.org/lkml/Y9pY61y1nwTuzMOa@nanopsycho/

    linuxОперационные системы
    Опубликовано Обновлено
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  14. CVE-2021-47418

    Средний · CVSS 6.8EPSS 0,23%Нет опубликованного исправления

    net_sched: fix NULL deref in fifo_set_limit()

    In the Linux kernel, the following vulnerability has been resolved: net_sched: fix NULL deref in fifo_set_limit() syzbot reported another NULL deref in fifo_set_limit() [1] I could repro the issue with : unshare -n tc qd add dev lo root handle 1:0 tbf limit 200000 burst 70000 rate 100Mbit tc qd replace dev lo parent 1:0 pfifo_fast tc qd change dev lo root handle 1:0 tbf limit 300000 burst 70000 rate 100Mbit pfifo_fast does not have a change() operation. Make fifo_set_limit() more robust about this. [1] BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 1cf99067 P4D 1cf99067 PUD 7ca49067 PMD 0 Oops: 0010 [#1] PREEMPT SMP

    linuxОперационные системы
    Опубликовано Обновлено
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  15. CVE-2021-47416

    Средний · CVSS 5.5EPSS 0,23%Нет опубликованного исправления

    phy: mdio: fix memory leak

    In the Linux kernel, the following vulnerability has been resolved: phy: mdio: fix memory leak Syzbot reported memory leak in MDIO bus interface, the problem was in wrong state logic. MDIOBUS_ALLOCATED indicates 2 states: 1. Bus is only allocated 2. Bus allocated and __mdiobus_register() fails, but device_register() was called In case of device_register() has been called we should call put_device() to correctly free the memory allocated for this device, but mdiobus_free() calls just kfree(dev) in case of MDIOBUS_ALLOCATED state To avoid this behaviour we need to set bus->state to MDIOBUS_UNREGISTERED _before_ calling device_registe

    linuxОперационные системы
    Опубликовано Обновлено
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  16. CVE-2021-47405

    Средний · CVSS 5.5EPSS 0,25%Нет опубликованного исправления

    HID: usbhid: free raw_report buffers in usbhid_stop

    In the Linux kernel, the following vulnerability has been resolved: HID: usbhid: free raw_report buffers in usbhid_stop Free the unsent raw_report buffers when the device is removed. Fixes a memory leak reported by syzbot at: https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418ab47

    linuxОперационные системы
    Опубликовано Обновлено
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  17. CVE-2021-47401

    Высокий · CVSS 7.1EPSS 0,25%Нет опубликованного исправления

    ipack: ipoctal: fix stack information leak

    In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix stack information leak The tty driver name is used also after registering the driver and must specifically not be allocated on the stack to avoid leaking information to user space (or triggering an oops). Drivers should not try to encode topology information in the tty device name but this one snuck in through staging without anyone noticing and another driver has since copied this malpractice. Fixing the ABI is a separate issue, but this at least plugs the security hole.

    linuxОперационные системы
    Опубликовано Обновлено
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  18. CVE-2021-47396

    Средний · CVSS 5.7EPSS 0,24%Нет опубликованного исправления

    mac80211-hwsim: fix late beacon hrtimer handling

    In the Linux kernel, the following vulnerability has been resolved: mac80211-hwsim: fix late beacon hrtimer handling Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx that our handling of the hrtimer here is wrong: If the timer fires late (e.g. due to vCPU scheduling, as reported by Dmitry/syzbot) then it tries to actually rearm the timer at the next deadline, which might be in the past already: 1 2 3 N N+1 | | | ... | | ^ intended to fire here (1) ^ next deadline here (2) ^ actually fired here The next

    linuxОперационные системы
    Опубликовано Обновлено
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  19. CVE-2021-47391

    Высокий · CVSS 7.8EPSS 0,24%Нет опубликованного исправления

    RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests

    In the Linux kernel, the following vulnerability has been resolved: RDMA/cma: Ensure rdma_addr_cancel() happens before issuing more requests The FSM can run in a circle allowing rdma_resolve_ip() to be called twice on the same id_priv. While this cannot happen without going through the work, it violates the invariant that the same address resolution background request cannot be active twice. CPU 1 CPU 2 rdma_resolve_addr(): RDMA_CM_IDLE -> RDMA_CM_ADDR_QUERY rdma_resolve_ip(addr_handler) #1 process_one_req(): for #1 addr_handler(): RDMA

    linuxОперационные системы
    Опубликовано Обновлено
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  20. CVE-2021-47383

    Высокий · CVSS 7.8EPSS 0,27%Нет опубликованного исправления

    tty: Fix out-of-bound vmalloc access in imageblit

    In the Linux kernel, the following vulnerability has been resolved: tty: Fix out-of-bound vmalloc access in imageblit This issue happens when a userspace program does an ioctl FBIOPUT_VSCREENINFO passing the fb_var_screeninfo struct containing only the fields xres, yres, and bits_per_pixel with values. If this struct is the same as the previous ioctl, the vc_resize() detects it and doesn't call the resize_screen(), leaving the fb_var_screeninfo incomplete. And this leads to the updatescrollmode() calculates a wrong value to fbcon_display->vrows, which makes the real_y() return a wrong value of y, and that value, eventually, causes the imag

    linuxОперационные системы
    Опубликовано Обновлено
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