CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-42310 – drm/gma500: fix null pointer dereference in cdv_intel_lvds_get_modes
https://notcve.org/view.php?id=CVE-2024-42310
In the Linux kernel, the following vulnerability has been resolved: drm/gma500: fix null pointer dereference in cdv_intel_lvds_get_modes In cdv_intel_lvds_get_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. • https://git.kernel.org/stable/c/6a227d5fd6c4abe6a9226a40f6981825e9da5fbe https://git.kernel.org/stable/c/f392c36cebf4c1d6997a4cc2c0f205254acef42a https://git.kernel.org/stable/c/a658ae2173ab74667c009e2550455e6de5b33ddc https://git.kernel.org/stable/c/b6ac46a00188cde50ffba233e6efb366354a1de5 https://git.kernel.org/stable/c/08f45102c81ad8bc9f85f7a25e9f64e128edb87d https://git.kernel.org/stable/c/e74eb5e8089427c8c49e0dd5067e5f39ce3a4d56 https://git.kernel.org/stable/c/2d209b2f862f6b8bff549ede541590a8d119da23 https://git.kernel.org/stable/c/977ee4fe895e1729cd36cc26916bbb100 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-42309 – drm/gma500: fix null pointer dereference in psb_intel_lvds_get_modes
https://notcve.org/view.php?id=CVE-2024-42309
In the Linux kernel, the following vulnerability has been resolved: drm/gma500: fix null pointer dereference in psb_intel_lvds_get_modes In psb_intel_lvds_get_modes(), the return value of drm_mode_duplicate() is assigned to mode, which will lead to a possible NULL pointer dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. • https://git.kernel.org/stable/c/89c78134cc54dff016c83367912eb055637fa50c https://git.kernel.org/stable/c/13b5f3ee94bdbdc4b5f40582aab62977905aedee https://git.kernel.org/stable/c/d6ad202f73f8edba0cbc0065aa57a79ffe8fdcdc https://git.kernel.org/stable/c/6735d02ead7dd3adf74eb8b70aebd09e0ce78ec9 https://git.kernel.org/stable/c/7e52c62ff029f95005915c0a11863b5fb5185c8c https://git.kernel.org/stable/c/f70ffeca546452d1acd3a70ada56ecb2f3e7f811 https://git.kernel.org/stable/c/46d2ef272957879cbe30a884574320e7f7d78692 https://git.kernel.org/stable/c/475a5b3b7c8edf6e583a9eb59cf28ea77 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-42305 – ext4: check dot and dotdot of dx_root before making dir indexed
https://notcve.org/view.php?id=CVE-2024-42305
In the Linux kernel, the following vulnerability has been resolved: ext4: check dot and dotdot of dx_root before making dir indexed Syzbot reports a issue as follows: ============================================ BUG: unable to handle page fault for address: ffffed11022e24fe PGD 23ffee067 P4D 23ffee067 PUD 0 Oops: Oops: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 5079 Comm: syz-executor306 Not tainted 6.10.0-rc5-g55027e689933 #0 Call Trace: <TASK> make_indexed_dir+0xdaf/0x13c0 fs/ext4/namei.c:2341 ext4_add_entry+0x222a/0x25d0 fs/ext4/namei.c:2451 ext4_rename fs/ext4/namei.c:3936 [inline] ext4_rename2+0x26e5/0x4370 fs/ext4/namei.c:4214 [...] ============================================ The immediate cause of this problem is that there is only one valid dentry for the block to be split during do_split, so split==0 results in out of bounds accesses to the map triggering the issue. do_split unsigned split dx_make_map count = 1 split = count/2 = 0; continued = hash2 == map[split - 1].hash; ---> map[4294967295] The maximum length of a filename is 255 and the minimum block size is 1024, so it is always guaranteed that the number of entries is greater than or equal to 2 when do_split() is called. But syzbot's crafted image has no dot and dotdot in dir, and the dentry distribution in dirblock is as follows: bus dentry1 hole dentry2 free |xx--|xx-------------|...............|xx-------------|...............| 0 12 (8+248)=256 268 256 524 (8+256)=264 788 236 1024 So when renaming dentry1 increases its name_len length by 1, neither hole nor free is sufficient to hold the new dentry, and make_indexed_dir() is called. In make_indexed_dir() it is assumed that the first two entries of the dirblock must be dot and dotdot, so bus and dentry1 are left in dx_root because they are treated as dot and dotdot, and only dentry2 is moved to the new leaf block. That's why count is equal to 1. Therefore add the ext4_check_dx_root() helper function to add more sanity checks to dot and dotdot before starting the conversion to avoid the above issue. • https://git.kernel.org/stable/c/ac27a0ec112a089f1a5102bc8dffc79c8c815571 https://git.kernel.org/stable/c/b80575ffa98b5bb3a5d4d392bfe4c2e03e9557db https://git.kernel.org/stable/c/19e13b4d7f0303186fcc891aba8d0de7c8fdbda8 https://git.kernel.org/stable/c/42d420517072028fb0eb852c358056b7717ba5aa https://git.kernel.org/stable/c/8afe06ed3be7a874b3cd82ef5f8959aca8d6429a https://git.kernel.org/stable/c/abb411ac991810c0bcbe51c2e76d2502bf611b5c https://git.kernel.org/stable/c/9d241b7a39af192d1bb422714a458982c7cc67a2 https://git.kernel.org/stable/c/cdd345321699042ece4a9d2e70754d239 •
CVSS: -EPSS: 0%CPEs: 12EXPL: 0CVE-2024-42304 – ext4: make sure the first directory block is not a hole
https://notcve.org/view.php?id=CVE-2024-42304
In the Linux kernel, the following vulnerability has been resolved: ext4: make sure the first directory block is not a hole The syzbot constructs a directory that has no dirblock but is non-inline, i.e. the first directory block is a hole. And no errors are reported when creating files in this directory in the following flow. ext4_mknod ... ext4_add_entry // Read block 0 ext4_read_dirblock(dir, block, DIRENT) bh = ext4_bread(NULL, inode, block, 0) if (!bh && (type == INDEX || type == DIRENT_HTREE)) // The first directory block is a hole // But type == DIRENT, so no error is reported. After that, we get a directory block without '.' and '..' but with a valid dentry. This may cause some code that relies on dot or dotdot (such as make_indexed_dir()) to crash. Therefore when ext4_read_dirblock() finds that the first directory block is a hole report that the filesystem is corrupted and return an error to avoid loading corrupted data from disk causing something bad. • https://git.kernel.org/stable/c/3a17ca864baffc0c6f6e8aad525aa4365775a193 https://git.kernel.org/stable/c/4e19d6b65fb4fc42e352ce9883649e049da14743 https://git.kernel.org/stable/c/3f0307b0d2d8b333a6964fc4c820dc86896fd1cf https://git.kernel.org/stable/c/514631c2225c1fd556c799cc1893fb27b0f48f00 https://git.kernel.org/stable/c/7f1f86276515f6816a98f6ca3ef99c827d54642f https://git.kernel.org/stable/c/5021b7a5bdd6bb859eb648c3da71cdd6aae1d133 https://git.kernel.org/stable/c/d81d7e347d1f1f48a5634607d39eb90c161c8afe https://git.kernel.org/stable/c/e02f9941e8c011aa3eafa799def6a134c •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2024-42301 – dev/parport: fix the array out-of-bounds risk
https://notcve.org/view.php?id=CVE-2024-42301
In the Linux kernel, the following vulnerability has been resolved: dev/parport: fix the array out-of-bounds risk Fixed array out-of-bounds issues caused by sprintf by replacing it with snprintf for safer data copying, ensuring the destination buffer is not overflowed. Below is the stack trace I encountered during the actual issue: [ 66.575408s] [pid:5118,cpu4,QThread,4]Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: do_hardware_base_addr+0xcc/0xd0 [parport] [ 66.575408s] [pid:5118,cpu4,QThread,5]CPU: 4 PID: 5118 Comm: QThread Tainted: G S W O 5.10.97-arm64-desktop #7100.57021.2 [ 66.575439s] [pid:5118,cpu4,QThread,6]TGID: 5087 Comm: EFileApp [ 66.575439s] [pid:5118,cpu4,QThread,7]Hardware name: HUAWEI HUAWEI QingYun PGUX-W515x-B081/SP1PANGUXM, BIOS 1.00.07 04/29/2024 [ 66.575439s] [pid:5118,cpu4,QThread,8]Call trace: [ 66.575469s] [pid:5118,cpu4,QThread,9] dump_backtrace+0x0/0x1c0 [ 66.575469s] [pid:5118,cpu4,QThread,0] show_stack+0x14/0x20 [ 66.575469s] [pid:5118,cpu4,QThread,1] dump_stack+0xd4/0x10c [ 66.575500s] [pid:5118,cpu4,QThread,2] panic+0x1d8/0x3bc [ 66.575500s] [pid:5118,cpu4,QThread,3] __stack_chk_fail+0x2c/0x38 [ 66.575500s] [pid:5118,cpu4,QThread,4] do_hardware_base_addr+0xcc/0xd0 [parport] • https://git.kernel.org/stable/c/166a0bddcc27de41fe13f861c8348e8e53e988c8 https://git.kernel.org/stable/c/47b3dce100778001cd76f7e9188944b5cb27a76d https://git.kernel.org/stable/c/a44f88f7576bc1916d8d6293f5c62fbe7cbe03e0 https://git.kernel.org/stable/c/c719b393374d3763e64900ee19aaed767d5a08d6 https://git.kernel.org/stable/c/7f4da759092a1a6ce35fb085182d02de8cc4cc84 https://git.kernel.org/stable/c/b579ea3516c371ecf59d073772bc45dfd28c8a0e https://git.kernel.org/stable/c/7789a1d6792af410aa9b39a1eb237ed24fa2170a https://git.kernel.org/stable/c/ab11dac93d2d568d151b1918d7b84c2d0 •