CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-45007 – char: xillybus: Don't destroy workqueue from work item running on it
https://notcve.org/view.php?id=CVE-2024-45007
In the Linux kernel, the following vulnerability has been resolved: char: xillybus: Don't destroy workqueue from work item running on it Triggered by a kref decrement, destroy_workqueue() may be called from within a work item for destroying its own workqueue. This illegal situation is averted by adding a module-global workqueue for exclusive use of the offending work item. Other work items continue to be queued on per-device workqueues to ensure performance. • https://git.kernel.org/stable/c/409b495f8e3300d5fba08bc817fa8825dae48cc9 https://git.kernel.org/stable/c/5d3567caff2a1d678aa40cc74a54e1318941fad3 https://git.kernel.org/stable/c/a7ad105b12256ec7fb6d6d1a0e2e60f00b7da157 https://git.kernel.org/stable/c/aa1a19724fa2c31e97a9be48baedd4692b265157 https://git.kernel.org/stable/c/ccbde4b128ef9c73d14d0d7817d68ef795f6d131 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-45006 – xhci: Fix Panther point NULL pointer deref at full-speed re-enumeration
https://notcve.org/view.php?id=CVE-2024-45006
In the Linux kernel, the following vulnerability has been resolved: xhci: Fix Panther point NULL pointer deref at full-speed re-enumeration re-enumerating full-speed devices after a failed address device command can trigger a NULL pointer dereference. Full-speed devices may need to reconfigure the endpoint 0 Max Packet Size value during enumeration. Usb core calls usb_ep0_reinit() in this case, which ends up calling xhci_configure_endpoint(). On Panther point xHC the xhci_configure_endpoint() function will additionally check and reserve bandwidth in software. Other hosts do this in hardware If xHC address device command fails then a new xhci_virt_device structure is allocated as part of re-enabling the slot, but the bandwidth table pointers are not set up properly here. This triggers the NULL pointer dereference the next time usb_ep0_reinit() is called and xhci_configure_endpoint() tries to check and reserve bandwidth [46710.713538] usb 3-1: new full-speed USB device number 5 using xhci_hcd [46710.713699] usb 3-1: Device not responding to setup address. [46710.917684] usb 3-1: Device not responding to setup address. [46711.125536] usb 3-1: device not accepting address 5, error -71 [46711.125594] BUG: kernel NULL pointer dereference, address: 0000000000000008 [46711.125600] #PF: supervisor read access in kernel mode [46711.125603] #PF: error_code(0x0000) - not-present page [46711.125606] PGD 0 P4D 0 [46711.125610] Oops: Oops: 0000 [#1] PREEMPT SMP PTI [46711.125615] CPU: 1 PID: 25760 Comm: kworker/1:2 Not tainted 6.10.3_2 #1 [46711.125620] Hardware name: Gigabyte Technology Co., Ltd. [46711.125623] Workqueue: usb_hub_wq hub_event [usbcore] [46711.125668] RIP: 0010:xhci_reserve_bandwidth (drivers/usb/host/xhci.c Fix this by making sure bandwidth table pointers are set up correctly after a failed address device command, and additionally by avoiding checking for bandwidth in cases like this where no actual endpoints are added or removed, i.e. only context for default control endpoint 0 is evaluated. • https://git.kernel.org/stable/c/651aaf36a7d7b36a58980e70133f9437d4f6d312 https://git.kernel.org/stable/c/ef0a0e616b2789bb804a0ce5e161db03170a85b6 https://git.kernel.org/stable/c/a57b0ebabe6862dce0a2e0f13e17941ad72fc56b https://git.kernel.org/stable/c/0f0654318e25b2c185e245ba4a591e42fabb5e59 https://git.kernel.org/stable/c/365ef7c4277fdd781a695c3553fa157d622d805d https://git.kernel.org/stable/c/5ad898ae82412f8a689d59829804bff2999dd0ea https://git.kernel.org/stable/c/6b99de301d78e1f5249e57ef2c32e1dec3df2bb1 https://git.kernel.org/stable/c/8fb9d412ebe2f245f13481e4624b40e65 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-45003 – vfs: Don't evict inode under the inode lru traversing context
https://notcve.org/view.php?id=CVE-2024-45003
In the Linux kernel, the following vulnerability has been resolved: vfs: Don't evict inode under the inode lru traversing context The inode reclaiming process(See function prune_icache_sb) collects all reclaimable inodes and mark them with I_FREEING flag at first, at that time, other processes will be stuck if they try getting these inodes (See function find_inode_fast), then the reclaiming process destroy the inodes by function dispose_list(). Some filesystems(eg. ext4 with ea_inode feature, ubifs with xattr) may do inode lookup in the inode evicting callback function, if the inode lookup is operated under the inode lru traversing context, deadlock problems may happen. Case 1: In function ext4_evict_inode(), the ea inode lookup could happen if ea_inode feature is enabled, the lookup process will be stuck under the evicting context like this: 1. File A has inode i_reg and an ea inode i_ea 2. getfattr(A, xattr_buf) // i_ea is added into lru // lru->i_ea 3. Then, following three processes running like this: PA PB echo 2 > /proc/sys/vm/drop_caches shrink_slab prune_dcache_sb // i_reg is added into lru, lru->i_ea->i_reg prune_icache_sb list_lru_walk_one inode_lru_isolate i_ea->i_state |= I_FREEING // set inode state inode_lru_isolate __iget(i_reg) spin_unlock(&i_reg->i_lock) spin_unlock(lru_lock) rm file A i_reg->nlink = 0 iput(i_reg) // i_reg->nlink is 0, do evict ext4_evict_inode ext4_xattr_delete_inode ext4_xattr_inode_dec_ref_all ext4_xattr_inode_iget ext4_iget(i_ea->i_ino) iget_locked find_inode_fast __wait_on_freeing_inode(i_ea) ----→ AA deadlock dispose_list // cannot be executed by prune_icache_sb wake_up_bit(&i_ea->i_state) Case 2: In deleted inode writing function ubifs_jnl_write_inode(), file deleting process holds BASEHD's wbuf->io_mutex while getting the xattr inode, which could race with inode reclaiming process(The reclaiming process could try locking BASEHD's wbuf->io_mutex in inode evicting function), then an ABBA deadlock problem would happen as following: 1. File A has inode ia and a xattr(with inode ixa), regular file B has inode ib and a xattr. 2. getfattr(A, xattr_buf) // ixa is added into lru // lru->ixa 3. • https://git.kernel.org/stable/c/e50e5129f384ae282adebfb561189cdb19b81cee https://git.kernel.org/stable/c/3525ad25240dfdd8c78f3470911ed10aa727aa72 https://git.kernel.org/stable/c/03880af02a78bc9a98b5a581f529cf709c88a9b8 https://git.kernel.org/stable/c/cda54ec82c0f9d05393242b20b13f69b083f7e88 https://git.kernel.org/stable/c/437741eba63bf4e437e2beb5583f8633556a2b98 https://git.kernel.org/stable/c/b9bda5f6012dd00372f3a06a82ed8971a4c57c32 https://git.kernel.org/stable/c/9063ab49c11e9518a3f2352434bb276cc8134c5f https://git.kernel.org/stable/c/2a0629834cd82f05d424bbc193374f9a4 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-44999 – gtp: pull network headers in gtp_dev_xmit()
https://notcve.org/view.php?id=CVE-2024-44999
In the Linux kernel, the following vulnerability has been resolved: gtp: pull network headers in gtp_dev_xmit() syzbot/KMSAN reported use of uninit-value in get_dev_xmit() [1] We must make sure the IPv4 or Ipv6 header is pulled in skb->head before accessing fields in them. Use pskb_inet_may_pull() to fix this issue. [1] BUG: KMSAN: uninit-value in ipv6_pdp_find drivers/net/gtp.c:220 [inline] BUG: KMSAN: uninit-value in gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline] BUG: KMSAN: uninit-value in gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281 ipv6_pdp_find drivers/net/gtp.c:220 [inline] gtp_build_skb_ip6 drivers/net/gtp.c:1229 [inline] gtp_dev_xmit+0x1424/0x2540 drivers/net/gtp.c:1281 __netdev_start_xmit include/linux/netdevice.h:4913 [inline] netdev_start_xmit include/linux/netdevice.h:4922 [inline] xmit_one net/core/dev.c:3580 [inline] dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3596 __dev_queue_xmit+0x358c/0x5610 net/core/dev.c:4423 dev_queue_xmit include/linux/netdevice.h:3105 [inline] packet_xmit+0x9c/0x6c0 net/packet/af_packet.c:276 packet_snd net/packet/af_packet.c:3145 [inline] packet_sendmsg+0x90e3/0xa3a0 net/packet/af_packet.c:3177 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 __sys_sendto+0x685/0x830 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212 x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit was created at: slab_post_alloc_hook mm/slub.c:3994 [inline] slab_alloc_node mm/slub.c:4037 [inline] kmem_cache_alloc_node_noprof+0x6bf/0xb80 mm/slub.c:4080 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:583 __alloc_skb+0x363/0x7b0 net/core/skbuff.c:674 alloc_skb include/linux/skbuff.h:1320 [inline] alloc_skb_with_frags+0xc8/0xbf0 net/core/skbuff.c:6526 sock_alloc_send_pskb+0xa81/0xbf0 net/core/sock.c:2815 packet_alloc_skb net/packet/af_packet.c:2994 [inline] packet_snd net/packet/af_packet.c:3088 [inline] packet_sendmsg+0x749c/0xa3a0 net/packet/af_packet.c:3177 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:745 __sys_sendto+0x685/0x830 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __x64_sys_sendto+0x125/0x1d0 net/socket.c:2212 x64_sys_call+0x3799/0x3c10 arch/x86/include/generated/asm/syscalls_64.h:45 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 0 UID: 0 PID: 7115 Comm: syz.1.515 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 • https://git.kernel.org/stable/c/459aa660eb1d8ce67080da1983bb81d716aa5a69 https://git.kernel.org/stable/c/3d89d0c4a1c6d4d2a755e826351b0a101dbc86f3 https://git.kernel.org/stable/c/f5dda8db382c5751c4e572afc7c99df7da1f83ca https://git.kernel.org/stable/c/cbb9a969fc190e85195d1b0f08038e7f6199044e https://git.kernel.org/stable/c/1f6b62392453d8f36685d19b761307a8c5617ac1 https://git.kernel.org/stable/c/137d565ab89ce3584503b443bc9e00d44f482593 https://git.kernel.org/stable/c/34ba4f29f3d9eb52dee37512059efb2afd7e966f https://git.kernel.org/stable/c/3939d787139e359b77aaf9485d1e145d6 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-44998 – atm: idt77252: prevent use after free in dequeue_rx()
https://notcve.org/view.php?id=CVE-2024-44998
In the Linux kernel, the following vulnerability has been resolved: atm: idt77252: prevent use after free in dequeue_rx() We can't dereference "skb" after calling vcc->push() because the skb is released. • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 https://git.kernel.org/stable/c/628ea82190a678a56d2ec38cda3addf3b3a6248d https://git.kernel.org/stable/c/09e086a5f72ea27c758b3f3b419a69000c32adc1 https://git.kernel.org/stable/c/1cece837e387c039225f19028df255df87a97c0d https://git.kernel.org/stable/c/24cf390a5426aac9255205e9533cdd7b4235d518 https://git.kernel.org/stable/c/379a6a326514a3e2f71b674091dfb0e0e7522b55 https://git.kernel.org/stable/c/ef23c18ab88e33ce000d06a5c6aad0620f219bfd https://git.kernel.org/stable/c/91b4850e7165a4b7180ef1e227733bcb4 •