CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-47699 – nilfs2: fix potential null-ptr-deref in nilfs_btree_insert()
https://notcve.org/view.php?id=CVE-2024-47699
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential null-ptr-deref in nilfs_btree_insert() Patch series "nilfs2: fix potential issues with empty b-tree nodes". This series addresses three potential issues with empty b-tree nodes that can occur with corrupted filesystem images, including one recently discovered by syzbot. This patch (of 3): If a b-tree is broken on the device, and the b-tree height is greater than 2 (the level of the root node is greater than 1) even if the number of child nodes of the b-tree root is 0, a NULL pointer dereference occurs in nilfs_btree_prepare_insert(), which is called from nilfs_btree_insert(). This is because, when the number of child nodes of the b-tree root is 0, nilfs_btree_do_lookup() does not set the block buffer head in any of path[x].bp_bh, leaving it as the initial value of NULL, but if the level of the b-tree root node is greater than 1, nilfs_btree_get_nonroot_node(), which accesses the buffer memory of path[x].bp_bh, is called. Fix this issue by adding a check to nilfs_btree_root_broken(), which performs sanity checks when reading the root node from the device, to detect this inconsistency. Thanks to Lizhi Xu for trying to solve the bug and clarifying the cause early on. • https://git.kernel.org/stable/c/17c76b0104e4a6513983777e1a17e0297a12b0c4 https://git.kernel.org/stable/c/2b78e9df10fb7f4e9d3d7a18417dd72fbbc1dfd0 https://git.kernel.org/stable/c/1d94dbdfbb64cc48d10dec65cc3c4fbf2497b343 https://git.kernel.org/stable/c/24bf40740a3da6b4056721da34997ae6938f3da1 https://git.kernel.org/stable/c/73d23ecf234b7a6d47fb883f2dabe10e3230b31d https://git.kernel.org/stable/c/f68523e0f26faade18833fbef577a4295d8e2c94 https://git.kernel.org/stable/c/21839b6fbc3c41b3e374ecbdb0cabbbb2c53cf34 https://git.kernel.org/stable/c/db73500d3f0e558eb642aae1d4782e772 •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-47698 – drivers: media: dvb-frontends/rtl2832: fix an out-of-bounds write error
https://notcve.org/view.php?id=CVE-2024-47698
In the Linux kernel, the following vulnerability has been resolved: drivers: media: dvb-frontends/rtl2832: fix an out-of-bounds write error Ensure index in rtl2832_pid_filter does not exceed 31 to prevent out-of-bounds access. dev->filters is a 32-bit value, so set_bit and clear_bit functions should only operate on indices from 0 to 31. If index is 32, it will attempt to access a non-existent 33rd bit, leading to out-of-bounds access. Change the boundary check from index > 32 to index >= 32 to resolve this issue. [hverkuil: added fixes tag, rtl2830_pid_filter -> rtl2832_pid_filter in logmsg] • https://git.kernel.org/stable/c/4b01e01a81b6629878344430531ced347cc2ed5b https://git.kernel.org/stable/c/7065c05c6d58b9b9a98127aa14e9a5ec68173918 https://git.kernel.org/stable/c/49b33c38d202d3327dcfd058e27f541dcc308b92 https://git.kernel.org/stable/c/6ae3b9aee42616ee93c4585174f40c767828006d https://git.kernel.org/stable/c/a879b6cdd48134a3d58949ea4f075c75fa2d7d71 https://git.kernel.org/stable/c/15bea004e939d938a6771dfcf2a26cc899ffd20a https://git.kernel.org/stable/c/527ab3eb3b0b4a6ee00e183c1de6a730239e2835 https://git.kernel.org/stable/c/66dbe0df6eccc7ee53a2c35016ce81e13 •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-47697 – drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error
https://notcve.org/view.php?id=CVE-2024-47697
In the Linux kernel, the following vulnerability has been resolved: drivers: media: dvb-frontends/rtl2830: fix an out-of-bounds write error Ensure index in rtl2830_pid_filter does not exceed 31 to prevent out-of-bounds access. dev->filters is a 32-bit value, so set_bit and clear_bit functions should only operate on indices from 0 to 31. If index is 32, it will attempt to access a non-existent 33rd bit, leading to out-of-bounds access. Change the boundary check from index > 32 to index >= 32 to resolve this issue. • https://git.kernel.org/stable/c/df70ddad81b47c57bcccffc805fbd75f2f1b2dc6 https://git.kernel.org/stable/c/8ffbe7d07b8e76193b151107878ddc1ccc94deb5 https://git.kernel.org/stable/c/883f794c6e498ae24680aead55c16f66b06cfc30 https://git.kernel.org/stable/c/badbd736e6649c4e6d7b4ff7e2b9857acfa9ea94 https://git.kernel.org/stable/c/86d920d2600c3a48efc2775c1666c1017eec6956 https://git.kernel.org/stable/c/3dba83d3c81de1368d15a39f22df7b53e306052f https://git.kernel.org/stable/c/58f31be7dfbc0c84a6497ad51924949cf64b86a2 https://git.kernel.org/stable/c/7fd6aae7e53b94f4035b1bfce28b8dfa0 •
CVSS: -EPSS: 0%CPEs: 9EXPL: 0CVE-2024-47696 – RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency
https://notcve.org/view.php?id=CVE-2024-47696
In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix WARNING:at_kernel/workqueue.c:#check_flush_dependency In the commit aee2424246f9 ("RDMA/iwcm: Fix a use-after-free related to destroying CM IDs"), the function flush_workqueue is invoked to flush the work queue iwcm_wq. But at that time, the work queue iwcm_wq was created via the function alloc_ordered_workqueue without the flag WQ_MEM_RECLAIM. Because the current process is trying to flush the whole iwcm_wq, if iwcm_wq doesn't have the flag WQ_MEM_RECLAIM, verify that the current process is not reclaiming memory or running on a workqueue which doesn't have the flag WQ_MEM_RECLAIM as that can break forward-progress guarantee leading to a deadlock. The call trace is as below: [ 125.350876][ T1430] Call Trace: [ 125.356281][ T1430] <TASK> [ 125.361285][ T1430] ? __warn (kernel/panic.c:693) [ 125.367640][ T1430] ? check_flush_dependency (kernel/workqueue.c:3706 (discriminator 9)) [ 125.375689][ T1430] ? report_bug (lib/bug.c:180 lib/bug.c:219) [ 125.382505][ T1430] ? handle_bug (arch/x86/kernel/traps.c:239) [ 125.388987][ T1430] ? • https://git.kernel.org/stable/c/d91d253c87fd1efece521ff2612078a35af673c6 https://git.kernel.org/stable/c/7f25f296fc9bd0435be14e89bf657cd615a23574 https://git.kernel.org/stable/c/94ee7ff99b87435ec63211f632918dc7f44dac79 https://git.kernel.org/stable/c/557d035fe88d78dd51664f4dc0e1896c04c97cf6 https://git.kernel.org/stable/c/dc8074b8901caabb97c2d353abd6b4e7fa5a59a5 https://git.kernel.org/stable/c/ff5bbbdee08287d75d72e65b72a2b76d9637892a https://git.kernel.org/stable/c/ee39384ee787e86e9db4efb843818ef0ea9cb8ae https://git.kernel.org/stable/c/aee2424246f9f1dadc33faa78990c1e2e •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-47692 – nfsd: return -EINVAL when namelen is 0
https://notcve.org/view.php?id=CVE-2024-47692
In the Linux kernel, the following vulnerability has been resolved: nfsd: return -EINVAL when namelen is 0 When we have a corrupted main.sqlite in /var/lib/nfs/nfsdcld/, it may result in namelen being 0, which will cause memdup_user() to return ZERO_SIZE_PTR. When we access the name.data that has been assigned the value of ZERO_SIZE_PTR in nfs4_client_to_reclaim(), null pointer dereference is triggered. [ T1205] ================================================================== [ T1205] BUG: KASAN: null-ptr-deref in nfs4_client_to_reclaim+0xe9/0x260 [ T1205] Read of size 1 at addr 0000000000000010 by task nfsdcld/1205 [ T1205] [ T1205] CPU: 11 PID: 1205 Comm: nfsdcld Not tainted 5.10.0-00003-g2c1423731b8d #406 [ T1205] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 [ T1205] Call Trace: [ T1205] dump_stack+0x9a/0xd0 [ T1205] ? nfs4_client_to_reclaim+0xe9/0x260 [ T1205] __kasan_report.cold+0x34/0x84 [ T1205] ? nfs4_client_to_reclaim+0xe9/0x260 [ T1205] kasan_report+0x3a/0x50 [ T1205] nfs4_client_to_reclaim+0xe9/0x260 [ T1205] ? nfsd4_release_lockowner+0x410/0x410 [ T1205] cld_pipe_downcall+0x5ca/0x760 [ T1205] ? • https://git.kernel.org/stable/c/74725959c33c14114fdce1e36e3504d106584d53 https://git.kernel.org/stable/c/6d07040ae5c2214e39c7444d898039c9e655a79a https://git.kernel.org/stable/c/0f1d007bbea38a61cf9c5392708dc70ae9d84a3d https://git.kernel.org/stable/c/b7b7a8df41ef18862dd6b22289fb46c2c12398af https://git.kernel.org/stable/c/84a563d136faf514fdad1ade28d7a142fd313cb8 https://git.kernel.org/stable/c/318f70857caab3da9a6ada9bc8c1f4f7591b695e https://git.kernel.org/stable/c/766d5fbd78f7a52b3888449a0358760477b74602 https://git.kernel.org/stable/c/1ff8be8d008b9ddc8e7043fbddd37d5d4 •