CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47145 – btrfs: do not BUG_ON in link_to_fixup_dir
https://notcve.org/view.php?id=CVE-2021-47145
In the Linux kernel, the following vulnerability has been resolved: btrfs: do not BUG_ON in link_to_fixup_dir While doing error injection testing I got the following panic kernel BUG at fs/btrfs/tree-log.c:1862! invalid opcode: 0000 [#1] SMP NOPTI CPU: 1 PID: 7836 Comm: mount Not tainted 5.13.0-rc1+ #305 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.13.0-2.fc32 04/01/2014 RIP: 0010:link_to_fixup_dir+0xd5/0xe0 RSP: 0018:ffffb5800180fa30 EFLAGS: 00010216 RAX: fffffffffffffffb RBX: 00000000fffffffb RCX: ffff8f595287faf0 RDX: ffffb5800180fa37 RSI: ffff8f5954978800 RDI: 0000000000000000 RBP: ffff8f5953af9450 R08: 0000000000000019 R09: 0000000000000001 R10: 000151f408682970 R11: 0000000120021001 R12: ffff8f5954978800 R13: ffff8f595287faf0 R14: ffff8f5953c77dd0 R15: 0000000000000065 FS: 00007fc5284c8c40(0000) GS:ffff8f59bbd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc5287f47c0 CR3: 000000011275e002 CR4: 0000000000370ee0 Call Trace: replay_one_buffer+0x409/0x470 ? btree_read_extent_buffer_pages+0xd0/0x110 walk_up_log_tree+0x157/0x1e0 walk_log_tree+0xa6/0x1d0 btrfs_recover_log_trees+0x1da/0x360 ? replay_one_extent+0x7b0/0x7b0 open_ctree+0x1486/0x1720 btrfs_mount_root.cold+0x12/0xea ? __kmalloc_track_caller+0x12f/0x240 legacy_get_tree+0x24/0x40 vfs_get_tree+0x22/0xb0 vfs_kern_mount.part.0+0x71/0xb0 btrfs_mount+0x10d/0x380 ? • https://git.kernel.org/stable/c/76bfd8ac20bebeae599452a03dfc5724c0475dcf https://git.kernel.org/stable/c/e934c4ee17b33bafb0444f2f9766cda7166d3c40 https://git.kernel.org/stable/c/0eaf383c6a4a83c09f60fd07a1bea9f1a9181611 https://git.kernel.org/stable/c/6eccfb28f8dca70c9b1b3bb3194ca54cbe73a9fa https://git.kernel.org/stable/c/0ed102453aa1cd12fefde8f6b60b9519b0b1f003 https://git.kernel.org/stable/c/7e13db503918820e6333811cdc6f151dcea5090a https://git.kernel.org/stable/c/b545442133580dcb2f2496133bf850824d41255c https://git.kernel.org/stable/c/91df99a6eb50d5a1bc70fff4a09a0b7ae •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2021-47144 – drm/amd/amdgpu: fix refcount leak
https://notcve.org/view.php?id=CVE-2021-47144
In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdgpu: fix refcount leak [Why] the gem object rfb->base.obj[0] is get according to num_planes in amdgpufb_create, but is not put according to num_planes [How] put rfb->base.obj[0] in amdgpu_fbdev_destroy according to num_planes En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/amdgpu: corrige la fuga de refcount [Por qué] el objeto gema rfb->base.obj[0] se obtiene según num_planes en amdgpufb_create, pero no se coloca según num_planes en amdgpufb_create num_planes [Cómo] poner rfb->base.obj[0] en amdgpu_fbdev_destroy según num_planes • https://git.kernel.org/stable/c/599e5d61ace952b0bb9bd942b198bbd0cfded1d7 https://git.kernel.org/stable/c/dde2656e0bbb2ac7d83a7bd95a8d5c3c95bbc009 https://git.kernel.org/stable/c/9fdb8ed37a3a44f9c49372b69f87fd5f61cb3240 https://git.kernel.org/stable/c/95a4ec905e51a30c64cf2d78b04a7acbeae5ca94 https://git.kernel.org/stable/c/fa7e6abc75f3d491bc561734312d065dc9dc2a77 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47143 – net/smc: remove device from smcd_dev_list after failed device_add()
https://notcve.org/view.php?id=CVE-2021-47143
In the Linux kernel, the following vulnerability has been resolved: net/smc: remove device from smcd_dev_list after failed device_add() If the device_add() for a smcd_dev fails, there's no cleanup step that rolls back the earlier list_add(). The device subsequently gets freed, and we end up with a corrupted list. Add some error handling that removes the device from the list. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: net/smc: eliminar dispositivo de smcd_dev_list después de fallar device_add() Si falla el dispositivo_add() para smcd_dev, no hay ningún paso de limpieza que revierta el list_add() anterior. Posteriormente, el dispositivo se libera y terminamos con una lista corrupta. Agregue algún manejo de errores que elimine el dispositivo de la lista. • https://git.kernel.org/stable/c/c6ba7c9ba43de1b57e9a53946e7ff988554c84ed https://git.kernel.org/stable/c/8b2cdc004d21a7255f219706dca64411108f7897 https://git.kernel.org/stable/c/40588782f1016c655ae1d302892f61d35af96842 https://git.kernel.org/stable/c/444d7be9532dcfda8e0385226c862fd7e986f607 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2021-47142 – drm/amdgpu: Fix a use-after-free
https://notcve.org/view.php?id=CVE-2021-47142
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix a use-after-free looks like we forget to set ttm->sg to NULL. Hit panic below [ 1235.844104] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI [ 1235.989074] Call Trace: [ 1235.991751] sg_free_table+0x17/0x20 [ 1235.995667] amdgpu_ttm_backend_unbind.cold+0x4d/0xf7 [amdgpu] [ 1236.002288] amdgpu_ttm_backend_destroy+0x29/0x130 [amdgpu] [ 1236.008464] ttm_tt_destroy+0x1e/0x30 [ttm] [ 1236.013066] ttm_bo_cleanup_memtype_use+0x51/0xa0 [ttm] [ 1236.018783] ttm_bo_release+0x262/0xa50 [ttm] [ 1236.023547] ttm_bo_put+0x82/0xd0 [ttm] [ 1236.027766] amdgpu_bo_unref+0x26/0x50 [amdgpu] [ 1236.032809] amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x7aa/0xd90 [amdgpu] [ 1236.040400] kfd_ioctl_alloc_memory_of_gpu+0xe2/0x330 [amdgpu] [ 1236.046912] kfd_ioctl+0x463/0x690 [amdgpu] En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amdgpu: se soluciona un problema de use-after-free que parece que nos olvidamos de configurar ttm->sg en NULL. Se produce pánico a continuación [1235.844104] falla de protección general, probablemente para la dirección no canónica 0x6b6b6b6b6b6b7b4b: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI [1235.989074] Seguimiento de llamadas: [1235.991751] sg_free_table+0x17/0x20 [ 123 5.995667] amdgpu_ttm_backend_unbind.cold+0x4d/0xf7 [amdgpu] [ 1236.002288] amdgpu_ttm_backend_destroy+0x29/0x130 [amdgpu] [ 1236.008464] ttm_tt_destroy+0x1e/0x30 [ttm] [ 1236.013066] ttm_bo_cleanup_memtype_use+0x51/0xa 0 [ttm] [ 1236.018783] ttm_bo_release+0x262/0xa50 [ttm] [ 1236.023547] ttm_bo_put+0x82/0xd0 [ttm] [ 1236.027766] amdgpu_bo_unref+0x26/0x50 [amdgpu] [ 1236.032809] amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x7aa/0xd90 [amdgpu] [ 123 6.040400] kfd_ioctl_alloc_memory_of_gpu+0xe2/0x330 [amdgpu] [ 1236.046912] kfd_ioctl+0x463/0x690 [ amdgpu] • https://git.kernel.org/stable/c/0707c3fea8102d211631ba515ef2159707561b0d https://git.kernel.org/stable/c/3293cf3513d69f00c14d43e2020826d45ea0e46a https://git.kernel.org/stable/c/952ab3f9f48eb0e8050596d41951cf516be6b122 https://git.kernel.org/stable/c/a849e218556f932576c0fb1c5a88714b61709a17 https://git.kernel.org/stable/c/7398c2aab4da960761ec182d04d6d5abbb4a226e https://git.kernel.org/stable/c/f98cdf084405333ee2f5be548a91b2d168e49276 https://git.kernel.org/stable/c/d4ea141fd4b40636a8326df5a377d9c5cf9b3faa https://git.kernel.org/stable/c/1e5c37385097c35911b0f8a0c67ffd10e •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47137 – net: lantiq: fix memory corruption in RX ring
https://notcve.org/view.php?id=CVE-2021-47137
In the Linux kernel, the following vulnerability has been resolved: net: lantiq: fix memory corruption in RX ring In a situation where memory allocation or dma mapping fails, an invalid address is programmed into the descriptor. This can lead to memory corruption. If the memory allocation fails, DMA should reuse the previous skb and mapping and drop the packet. This patch also increments rx drop counter. En el kernel de Linux, se resolvió la siguiente vulnerabilidad: net: lantiq: corrige la corrupción de la memoria en el anillo RX En una situación en la que falla la asignación de memoria o el mapeo dma, se programa una dirección no válida en el descriptor. • https://git.kernel.org/stable/c/fe1a56420cf2ec28c8eceef672b87de0bbe1a260 https://git.kernel.org/stable/c/8bb1077448d43a871ed667520763e3b9f9b7975d https://git.kernel.org/stable/c/5ac72351655f8b033a2935646f53b7465c903418 https://git.kernel.org/stable/c/46dd4abced3cb2c912916f4a5353e0927db0c4a2 https://git.kernel.org/stable/c/c7718ee96dbc2f9c5fc3b578abdf296dd44b9c20 •