CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-49878 – resource: fix region_intersects() vs add_memory_driver_managed()
https://notcve.org/view.php?id=CVE-2024-49878
In the Linux kernel, the following vulnerability has been resolved: resource: fix region_intersects() vs add_memory_driver_managed() On a system with CXL memory, the resource tree (/proc/iomem) related to CXL memory may look like something as follows. 490000000-50fffffff : CXL Window 0 490000000-50fffffff : region0 490000000-50fffffff : dax0.0 490000000-50fffffff : System RAM (kmem) Because drivers/dax/kmem.c calls add_memory_driver_managed() during onlining CXL memory, which makes "System RAM (kmem)" a descendant of "CXL Window X". This confuses region_intersects(), which expects all "System RAM" resources to be at the top level of iomem_resource. This can lead to bugs. For example, when the following command line is executed to write some memory in CXL memory range via /dev/mem, $ dd if=data of=/dev/mem bs=$((1 << 10)) seek=$((0x490000000 >> 10)) count=1 dd: error writing '/dev/mem': Bad address 1+0 records in 0+0 records out 0 bytes copied, 0.0283507 s, 0.0 kB/s the command fails as expected. However, the error code is wrong. It should be "Operation not permitted" instead of "Bad address". • https://git.kernel.org/stable/c/c221c0b0308fd01d9fb33a16f64d2fd95f8830a4 https://git.kernel.org/stable/c/333fbaf6864a4ca031367eb947961a1f3484d337 https://git.kernel.org/stable/c/1d5f85f1b7db79c75c9e07d6571ce2a7bdf725c4 https://git.kernel.org/stable/c/8a6fef7d22a1d952aed68584d3fcc0d018d2bdc3 https://git.kernel.org/stable/c/4b90d2eb451b357681063ba4552b10b39d7ad885 https://git.kernel.org/stable/c/393331e16ce205e036e58b3d8ca4ee2e635f21d9 https://git.kernel.org/stable/c/06ff97a20b8c9e9d256b0d2c3e87f78f8ccea3de https://git.kernel.org/stable/c/927abc5b7d6d2c2e936bec5a2f71d9512 •
CVSS: -EPSS: 0%CPEs: 12EXPL: 0CVE-2024-49877 – ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate
https://notcve.org/view.php?id=CVE-2024-49877
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate When doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if bh is NULL. • https://git.kernel.org/stable/c/6c150df9c2e80b5cf86f5a0d98beb7390ad63bfc https://git.kernel.org/stable/c/cf76c78595ca87548ca5e45c862ac9e0949c4687 https://git.kernel.org/stable/c/01f93d5e36753fc4d06ec67f05ce78c9c6f2dd56 https://git.kernel.org/stable/c/65cbd1279f4b999d56a838344a30642db24cd215 https://git.kernel.org/stable/c/97e1db17bc1ef4c2e1789bc9323c7be44fba53f8 https://git.kernel.org/stable/c/190d98bcd61117a78fe185222d162180f061a6ca https://git.kernel.org/stable/c/e68c8323355e8cedfbe0bec7d5a39009f61640b6 https://git.kernel.org/stable/c/61b84013e560382cbe7dd56758be3154d •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-49875 – nfsd: map the EBADMSG to nfserr_io to avoid warning
https://notcve.org/view.php?id=CVE-2024-49875
In the Linux kernel, the following vulnerability has been resolved: nfsd: map the EBADMSG to nfserr_io to avoid warning Ext4 will throw -EBADMSG through ext4_readdir when a checksum error occurs, resulting in the following WARNING. Fix it by mapping EBADMSG to nfserr_io. nfsd_buffered_readdir iterate_dir // -EBADMSG -74 ext4_readdir // .iterate_shared ext4_dx_readdir ext4_htree_fill_tree htree_dirblock_to_tree ext4_read_dirblock __ext4_read_dirblock ext4_dirblock_csum_verify warn_no_space_for_csum __warn_no_space_for_csum return ERR_PTR(-EFSBADCRC) // -EBADMSG -74 nfserrno // WARNING [ 161.115610] ------------[ cut here ]------------ [ 161.116465] nfsd: non-standard errno: -74 [ 161.117315] WARNING: CPU: 1 PID: 780 at fs/nfsd/nfsproc.c:878 nfserrno+0x9d/0xd0 [ 161.118596] Modules linked in: [ 161.119243] CPU: 1 PID: 780 Comm: nfsd Not tainted 5.10.0-00014-g79679361fd5d #138 [ 161.120684] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qe mu.org 04/01/2014 [ 161.123601] RIP: 0010:nfserrno+0x9d/0xd0 [ 161.124676] Code: 0f 87 da 30 dd 00 83 e3 01 b8 00 00 00 05 75 d7 44 89 ee 48 c7 c7 c0 57 24 98 89 44 24 04 c6 05 ce 2b 61 03 01 e8 99 20 d8 00 <0f> 0b 8b 44 24 04 eb b5 4c 89 e6 48 c7 c7 a0 6d a4 99 e8 cc 15 33 [ 161.127797] RSP: 0018:ffffc90000e2f9c0 EFLAGS: 00010286 [ 161.128794] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 161.130089] RDX: 1ffff1103ee16f6d RSI: 0000000000000008 RDI: fffff520001c5f2a [ 161.131379] RBP: 0000000000000022 R08: 0000000000000001 R09: ffff8881f70c1827 [ 161.132664] R10: ffffed103ee18304 R11: 0000000000000001 R12: 0000000000000021 [ 161.133949] R13: 00000000ffffffb6 R14: ffff8881317c0000 R15: ffffc90000e2fbd8 [ 161.135244] FS: 0000000000000000(0000) GS:ffff8881f7080000(0000) knlGS:0000000000000000 [ 161.136695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 161.137761] CR2: 00007fcaad70b348 CR3: 0000000144256006 CR4: 0000000000770ee0 [ 161.139041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 161.140291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 161.141519] PKRU: 55555554 [ 161.142076] Call Trace: [ 161.142575] ? __warn+0x9b/0x140 [ 161.143229] ? nfserrno+0x9d/0xd0 [ 161.143872] ? report_bug+0x125/0x150 [ 161.144595] ? handle_bug+0x41/0x90 [ 161.145284] ? • https://git.kernel.org/stable/c/0ea4333c679f333e23956de743ad17387819d3f2 https://git.kernel.org/stable/c/825789ca94602543101045ad3aad19b2b60c6b2a https://git.kernel.org/stable/c/6fe058502f8864649c3d614b06b2235223798f48 https://git.kernel.org/stable/c/f7d8ee9db94372b8235f5f22bb24381891594c42 https://git.kernel.org/stable/c/c76005adfa93d1a027433331252422078750321f https://git.kernel.org/stable/c/e9cfecca22a36b927a440abc6307efb9e138fed5 https://git.kernel.org/stable/c/340e61e44c1d2a15c42ec72ade9195ad525fd048 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-49871 – Input: adp5589-keys - fix NULL pointer dereference
https://notcve.org/view.php?id=CVE-2024-49871
In the Linux kernel, the following vulnerability has been resolved: Input: adp5589-keys - fix NULL pointer dereference We register a devm action to call adp5589_clear_config() and then pass the i2c client as argument so that we can call i2c_get_clientdata() in order to get our device object. However, i2c_set_clientdata() is only being set at the end of the probe function which means that we'll get a NULL pointer dereference in case the probe function fails early. • https://git.kernel.org/stable/c/30df385e35a48f773b85117fc490152c2395e45b https://git.kernel.org/stable/c/4449fedb8a710043fc0925409eba844c192d4337 https://git.kernel.org/stable/c/34e304cc53ae5d3c8e3f08b41dd11e0d4f3e01ed https://git.kernel.org/stable/c/7c3f04223aaf82489472d614c6decee5a1ce8d7f https://git.kernel.org/stable/c/9a38791ee79bd17d225c15a6d1479448be127a59 https://git.kernel.org/stable/c/122b160561f6429701a0559a0f39b0ae309488c6 https://git.kernel.org/stable/c/fb5cc65f973661241e4a2b7390b429aa7b330c69 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-49870 – cachefiles: fix dentry leak in cachefiles_open_file()
https://notcve.org/view.php?id=CVE-2024-49870
In the Linux kernel, the following vulnerability has been resolved: cachefiles: fix dentry leak in cachefiles_open_file() A dentry leak may be caused when a lookup cookie and a cull are concurrent: P1 | P2 ----------------------------------------------------------- cachefiles_lookup_cookie cachefiles_look_up_object lookup_one_positive_unlocked // get dentry cachefiles_cull inode->i_flags |= S_KERNEL_FILE; cachefiles_open_file cachefiles_mark_inode_in_use __cachefiles_mark_inode_in_use can_use = false if (!(inode->i_flags & S_KERNEL_FILE)) can_use = true return false return false // Returns an error but doesn't put dentry After that the following WARNING will be triggered when the backend folder is umounted: ================================================================== BUG: Dentry 000000008ad87947{i=7a,n=Dx_1_1.img} still in use (1) [unmount of ext4 sda] WARNING: CPU: 4 PID: 359261 at fs/dcache.c:1767 umount_check+0x5d/0x70 CPU: 4 PID: 359261 Comm: umount Not tainted 6.6.0-dirty #25 RIP: 0010:umount_check+0x5d/0x70 Call Trace: <TASK> d_walk+0xda/0x2b0 do_one_tree+0x20/0x40 shrink_dcache_for_umount+0x2c/0x90 generic_shutdown_super+0x20/0x160 kill_block_super+0x1a/0x40 ext4_kill_sb+0x22/0x40 deactivate_locked_super+0x35/0x80 cleanup_mnt+0x104/0x160 ================================================================== Whether cachefiles_open_file() returns true or false, the reference count obtained by lookup_positive_unlocked() in cachefiles_look_up_object() should be released. Therefore release that reference count in cachefiles_look_up_object() to fix the above issue and simplify the code. • https://git.kernel.org/stable/c/1f08c925e7a38002bde509e66f6f891468848511 https://git.kernel.org/stable/c/d32ff64c872d7e08e893c32ba6a2374583444410 https://git.kernel.org/stable/c/c7d10fa7d7691558ff967668494672415f5fa151 https://git.kernel.org/stable/c/e4a28489b310339b2b8187bec0a437709be551c1 https://git.kernel.org/stable/c/7fa2382f97421978514a419c93054eca69f5247b https://git.kernel.org/stable/c/da6ef2dffe6056aad3435e6cf7c6471c2a62187c •