{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-57923","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-01-19T11:50:08.376Z","datePublished":"2025-01-19T11:52:41.798Z","dateUpdated":"2025-05-04T10:06:43.567Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T10:06:43.567Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zlib: fix avail_in bytes for s390 zlib HW compression path\n\nSince the input data length passed to zlib_compress_folios() can be\narbitrary, always setting strm.avail_in to a multiple of PAGE_SIZE may\ncause read-in bytes to exceed the input range. Currently this triggers\nan assert in btrfs_compress_folios() on the debug kernel (see below).\nFix strm.avail_in calculation for S390 hardware acceleration path.\n\n  assertion failed: *total_in <= orig_len, in fs/btrfs/compression.c:1041\n  ------------[ cut here ]------------\n  kernel BUG at fs/btrfs/compression.c:1041!\n  monitor event: 0040 ilc:2 [#1] PREEMPT SMP\n  CPU: 16 UID: 0 PID: 325 Comm: kworker/u273:3 Not tainted 6.13.0-20241204.rc1.git6.fae3b21430ca.300.fc41.s390x+debug #1\n  Hardware name: IBM 3931 A01 703 (z/VM 7.4.0)\n  Workqueue: btrfs-delalloc btrfs_work_helper\n  Krnl PSW : 0704d00180000000 0000021761df6538 (btrfs_compress_folios+0x198/0x1a0)\n             R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:1 PM:0 RI:0 EA:3\n  Krnl GPRS: 0000000080000000 0000000000000001 0000000000000047 0000000000000000\n             0000000000000006 ffffff01757bb000 000001976232fcc0 000000000000130c\n             000001976232fcd0 000001976232fcc8 00000118ff4a0e30 0000000000000001\n             00000111821ab400 0000011100000000 0000021761df6534 000001976232fb58\n  Krnl Code: 0000021761df6528: c020006f5ef4        larl    %r2,0000021762be2310\n             0000021761df652e: c0e5ffbd09d5        brasl   %r14,00000217615978d8\n            #0000021761df6534: af000000            mc      0,0\n            >0000021761df6538: 0707                bcr     0,%r7\n             0000021761df653a: 0707                bcr     0,%r7\n             0000021761df653c: 0707                bcr     0,%r7\n             0000021761df653e: 0707                bcr     0,%r7\n             0000021761df6540: c004004bb7ec        brcl    0,000002176276d518\n  Call Trace:\n   [<0000021761df6538>] btrfs_compress_folios+0x198/0x1a0\n  ([<0000021761df6534>] btrfs_compress_folios+0x194/0x1a0)\n   [<0000021761d97788>] compress_file_range+0x3b8/0x6d0\n   [<0000021761dcee7c>] btrfs_work_helper+0x10c/0x160\n   [<0000021761645760>] process_one_work+0x2b0/0x5d0\n   [<000002176164637e>] worker_thread+0x20e/0x3e0\n   [<000002176165221a>] kthread+0x15a/0x170\n   [<00000217615b859c>] __ret_from_fork+0x3c/0x60\n   [<00000217626e72d2>] ret_from_fork+0xa/0x38\n  INFO: lockdep is turned off.\n  Last Breaking-Event-Address:\n   [<0000021761597924>] _printk+0x4c/0x58\n  Kernel panic - not syncing: Fatal exception: panic_on_oops"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/zlib.c"],"versions":[{"version":"fd1e75d0105d2289e24b6d63cee49e6f7952c8bf","lessThan":"25adbb08aeadcff883ab801df99fd20fefbb6ca4","status":"affected","versionType":"git"},{"version":"fd1e75d0105d2289e24b6d63cee49e6f7952c8bf","lessThan":"0ee4736c003daded513de0ff112d4a1e9c85bbab","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/zlib.c"],"versions":[{"version":"6.12","status":"affected"},{"version":"0","lessThan":"6.12","status":"unaffected","versionType":"semver"},{"version":"6.12.10","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/25adbb08aeadcff883ab801df99fd20fefbb6ca4"},{"url":"https://git.kernel.org/stable/c/0ee4736c003daded513de0ff112d4a1e9c85bbab"}],"title":"btrfs: zlib: fix avail_in bytes for s390 zlib HW compression path","x_generator":{"engine":"bippy-1.2.0"}}}}