CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-47737 – nfsd: call cache_put if xdr_reserve_space returns NULL
https://notcve.org/view.php?id=CVE-2024-47737
In the Linux kernel, the following vulnerability has been resolved: nfsd: call cache_put if xdr_reserve_space returns NULL If not enough buffer space available, but idmap_lookup has triggered lookup_fn which calls cache_get and returns successfully. Then we missed to call cache_put here which pairs with cache_get. Reviwed-by: Jeff Layton <jlayton@kernel.org> • https://git.kernel.org/stable/c/ddd1ea56367202f6c99135cd59de7a97af4c4ffd https://git.kernel.org/stable/c/9f03f0016ff797932551881c7e06ae50e9c39134 https://git.kernel.org/stable/c/9803ab882d565a8fb2dde5999d98866d1c499dfd https://git.kernel.org/stable/c/81821617312988096f5deccf0f7da6f888e98056 https://git.kernel.org/stable/c/a1afbbb5276f943ad7173d0b4c626b8c75a260da https://git.kernel.org/stable/c/e32ee6a61041925d1a05c14d10352dcfce9ef029 https://git.kernel.org/stable/c/8d0765f86135e27f0bb5c950c136495719b4c834 https://git.kernel.org/stable/c/d078cbf5c38de83bc31f83c47dcd2184c •
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: 6EXPL: 0CVE-2024-47734 – bonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave()
https://notcve.org/view.php?id=CVE-2024-47734
In the Linux kernel, the following vulnerability has been resolved: bonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave() syzbot reported a WARNING in bond_xdp_get_xmit_slave. To reproduce this[1], one bond device (bond1) has xdpdrv, which increases bpf_master_redirect_enabled_key. Another bond device (bond0) which is unsupported by XDP but its slave (veth3) has xdpgeneric that returns XDP_TX. This triggers WARN_ON_ONCE() from the xdp_master_redirect(). To reduce unnecessary warnings and improve log management, we need to delete the WARN_ON_ONCE() and add ratelimit to the netdev_err(). [1] Steps to reproduce: # Needs tx_xdp with return XDP_TX; ip l add veth0 type veth peer veth1 ip l add veth3 type veth peer veth4 ip l add bond0 type bond mode 6 # BOND_MODE_ALB, unsupported by XDP ip l add bond1 type bond # BOND_MODE_ROUNDROBIN by default ip l set veth0 master bond1 ip l set bond1 up # Increases bpf_master_redirect_enabled_key ip l set dev bond1 xdpdrv object tx_xdp.o section xdp_tx ip l set veth3 master bond0 ip l set bond0 up ip l set veth4 up # Triggers WARN_ON_ONCE() from the xdp_master_redirect() ip l set veth3 xdpgeneric object tx_xdp.o section xdp_tx • https://git.kernel.org/stable/c/9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e https://git.kernel.org/stable/c/c1be35e774f8ed415e01209fddd963c5a74e8e9f https://git.kernel.org/stable/c/6b64197b4bf1a5703a8b105367baf20f1e627a75 https://git.kernel.org/stable/c/ccd3e6ff05e5236d1b9535f23f3e6622e0bb32b8 https://git.kernel.org/stable/c/72e2c0825a480e19ee999cee9d018850d38c82b9 https://git.kernel.org/stable/c/57b5fba55c6f8b1d83312a34bd656166fcd95658 https://git.kernel.org/stable/c/0cbfd45fbcf0cb26d85c981b91c62fe73cdee01c •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-47733 – netfs: Delete subtree of 'fs/netfs' when netfs module exits
https://notcve.org/view.php?id=CVE-2024-47733
In the Linux kernel, the following vulnerability has been resolved: netfs: Delete subtree of 'fs/netfs' when netfs module exits In netfs_init() or fscache_proc_init(), we create dentry under 'fs/netfs', but in netfs_exit(), we only delete the proc entry of 'fs/netfs' without deleting its subtree. This triggers the following WARNING: ================================================================== remove_proc_entry: removing non-empty directory 'fs/netfs', leaking at least 'requests' WARNING: CPU: 4 PID: 566 at fs/proc/generic.c:717 remove_proc_entry+0x160/0x1c0 Modules linked in: netfs(-) CPU: 4 UID: 0 PID: 566 Comm: rmmod Not tainted 6.11.0-rc3 #860 RIP: 0010:remove_proc_entry+0x160/0x1c0 Call Trace: <TASK> netfs_exit+0x12/0x620 [netfs] __do_sys_delete_module.isra.0+0x14c/0x2e0 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e ================================================================== Therefore use remove_proc_subtree() instead of remove_proc_entry() to fix the above problem. • https://git.kernel.org/stable/c/7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab https://git.kernel.org/stable/c/603f95cefbee06a31b03137b777f03e3c2163d72 https://git.kernel.org/stable/c/7a9eaf97d56625e55b31a7beb558e1ee185ca461 https://git.kernel.org/stable/c/3c58a9575e02c2b90a3180007d57105ceaa7c246 •